Costco Engagement Ring Prices: 44 Buyer-Reported Rings and Verdicts

Costco against other warehouse clubs

Rings from	Rings	Median	Middle half	Lab-grown share
Costco	44	$4,550	$3,000 to $7,000	0%

Too few rings from other warehouse clubs to set beside Costco. Most common shapes: round (3).

By stone

Stone	Rings	Median	Middle half	Median weight
Natural diamond	26	$5,000	$3,500 to $7,000	1.14 ct
Diamond, lab or natural not said	11	$3,700	$2,000 to $10,000	–

What buyers said about Costco

Of 314 buyers who described their own experience with Costco, 270 recommend it, 33 are mixed and 11 warn against it. One line per buyer who bought or priced there themselves.

Verdict	Price named	What happened
Recommends	$500	Bought a 0.5 ctw 12-stone diamond wedding band online during a Black Friday sale for $499.99; shipped in 2 days, very happy with it
Recommends	–	Bought several pairs of 14kt gold hoop and huggie earrings there and found the quality and prices fair, though separately paid much more for a natural sapphire and diamond piece elsewhere.
Recommends	$570	Bought a 5mm 950 platinum (7.89g) band for $570 with free, easy shipping; calls it a much better deal than local jewelers for a nicer metal.
Recommends	–	Bought a lab-grown emerald with diamond halo engagement ring plus a matching wedding band there roughly two years before the post; called it well made and reasonably priced.
Recommends	C$9,600	Ordered a 1.3ct princess-cut platinum ring online; arrived with better specs (H color, IF clarity) than the advertised minimums; decided to keep it despite others calling it overpriced
Recommends	–	Praised for a fixed low profit margin, attractive stones, and strong warranty and customer service
Recommends	–	Bought an engagement ring set with several diamonds; loves it and says Costco backs everything it sells
Recommends	–	Fiance bought the engagement ring here; writer says she loves it
Recommends	–	Months of researching and comparing found no better value; Costco price-matched competitors
Recommends	C$15,000	Brother's stone came with a certificate and cost about half of jeweler pricing
Recommends	–	Both engagement and wedding rings from Costco; reasonable price, gets compliments regularly
Recommends	–	Good prices for the quality, plus a great return policy for sizing mistakes
Recommends	–	Mother's Costco upgrade ring, bought online, needed resizing since Costco only resizes about one size up or down; shipped fast, matched photos, appraised well above purchase price.
Recommends	–	Wore a Costco engagement ring daily for years working in a grocery store with no prong problems.
Recommends	–	Ring looks distinctive enough that people assume it's a family heirloom.
Recommends	–	Keeps prices reasonable, treats employees well, no sleazy upsell, unlike a jeweler that pressures repeat warranty-visit customers to upgrade their stone.
Recommends	–	Platinum diamond ring, good deal and nice stone quality.
Recommends	–	Bought both wedding band and engagement ring there; gorgeous and would recommend.
Recommends	–	Diamond-and-platinum wedding set bought five years earlier has held up well despite the buyer being clumsy; uses a trusted local jeweler for maintenance.
Recommends	C$7,700	Bought a 1.0ct round 14kt gold solitaire for $7,699.99 CAD before tax; GIA report showed VVS1 clarity, three grades better than the VS2 listed in store.
Recommends	–	Shopped six jewelers for a men's plain comfort band; Costco ran about 40% cheaper, though it didn't stock the wife's wanted yellow gold style
Recommends	–	Husband bought her rings at Costco after pricing custom rings elsewhere with the same setting and stone choices; found Costco's platinum pricing and quality better; 3 years, no issues
Recommends	–	Ring and other jewelry from Costco; quality top-notch, prices comparable to other jewelry stores; tip: get the executive membership first for 2% cash back on the purchase
Recommends	$10,000	Solitaire engagement ring from Costco in white gold for $10k; planning to have it reset in platinum for about $2k more
Recommends	–	Diamond band with I-color stones that face up white in white metal; says platinum runs only about $300-600 more than white gold on a typical setting
Recommends	–	Ring and band from Costco; appraised for more than the purchase price
Recommends	–	Platinum engagement ring from Costco worn daily for about three years; a trusted jeweler said it looked great during an evaluation and re-soldering
Recommends	–	Bought her plain wedding band there, citing very competitive prices though no amount was given
Recommends	–	No issues with a Costco jewelry purchase; likes that it falls under Costco's 100% satisfaction return policy
Recommends	–	Engagement set with a princess-cut solitaire and diamond infinity band; husband researched heavily and found Costco the best quality for the money
Recommends	–	Says a ring that retails for about $1,600 elsewhere likely costs a traditional jeweler only around $400, while Costco keeps the same modest markup as its other merchandise
Recommends	–	Found it the best deal on quality and value when ring shopping several years earlier
Recommends	–	Owns several Costco diamond pieces and likes them; currently looking for an emerald cut style
Recommends	–	Bought a diamond ring about 8 years earlier; spouse remains very happy with it
Recommends	–	Wedding band and an amethyst ring both from Costco with no issues and good quality
Recommends	–	Shopped gold chains across big retailer sales and clearance events; Costco still had the best deal
Recommends	–	In-store stock runs only size 7 so other sizes need ordering online; got a free replacement for a lost stone from a diamond earring set
Recommends	$4,699	Bought a 5ctw diamond eternity band online for $4,999 less a $300 promo; ordered size 7 with a no-questions resize policy if it doesn't fit.
Recommends	–	Wife's Costco engagement ring appraised at about triple the price paid.
Recommends	$5,500	A friend who manages a Costco jewelry counter said the store's jeweler charges roughly 15% over cost; bought a ring with a claimed $20k retail value for $5,500.
Recommends	–	Ring bought on a relative's recommendation about 20 years ago still appraises for more than was paid.
Recommends	–	Both a wedding ring and a 10-year anniversary band came from Costco; trusts its price and quality guarantee.
Recommends	–	Two diamond rings bought from Costco have held up beautifully after years of wear.
Recommends	–	Says Costco jewelry commonly appraises for 2-3x the purchase price and carries an easier return/satisfaction guarantee than other departments.
Recommends	–	Owns a diamond anniversary band and a lab-created emerald-and-diamond ring/earring set from Costco; the emerald ring needed resizing since it only came in one size, and a local jeweler was impressed by the quality.
Recommends	–	New ring bought at Costco cost noticeably less than an older ring bought years earlier at Zales, which he felt was worse quality.
Recommends	–	Bought online with in-store pickup; ring appraised for well above what it cost, called high quality
Recommends	–	Engagement ring quality was great; same specs elsewhere would have cost 20-100% more; returns accepted with gemologist verification
Recommends	$5,000	Son's $5k engagement ring appraised well above what was paid, by two different jewelers
Recommends	–	Gold wedding band had the best price for the same size and weight versus other sellers checked
Recommends	–	Married 20 years wearing a Costco diamond, appraised almost double what was paid
Recommends	–	Bought fiancee's ring from Costco, highly recommends it
Recommends	$24,000	$24k engagement ring bought online; valued the return protection and lower price than other options
Recommends	–	Used Costco's Diamond Buyer's phone service and calls the customer focus great
Recommends	–	Husband researched beforehand; calls the diamonds excellent quality, mostly VS/VVS clarity
Recommends	$2,000 to $10,000	Wife's several rings and earrings ($2k-10k) all appraised about double; a $5,000 diamond return went smoothly
Recommends	$16,000	$16k diamond ring bought online; good selection from inexpensive up to six-figure pieces
Recommends	–	Says Costco's diamonds are top notch for the price and the store will not stock anything below VS2 clarity
Recommends	$6,000	Ordered a round 1ct GIA-certified solitaire online, VVS1 color I excellent cut with medium blue fluorescence, happy with the quality for the price
Recommends	–	Bought Costco diamonds and had them appraised at a better grade than Costco's own listing claimed
Recommends	$10,000	Bought a diamond wedding set (halo ring plus two anniversary bands) in platinum; praised markup (about 14% over wholesale) and return policy but noted they do not size rings
Recommends	–	Husband bought her engagement ring at Costco; she says people are shocked it's from there and she gets frequent compliments.
Recommends	–	Bought his wife's ring at Costco; people are surprised at the source, he jokes it came in a 12-pack.
Recommends	–	Wedding set bought from Costco appraised for double what was spent.
Recommends	–	Bought a diamond tennis bracelet there that appraised 15-20% above cost; says he regrets past purchases from high-end standalone jewelers instead.
Recommends	–	Got her ring from Costco; likes the quality and enjoys telling people where it came from.
Recommends	–	Shopped Costco for morganite rings and found good options at good prices.
Recommends	–	Bought a 2-carat wedding band and diamond earrings there; says both were well priced and get lots of compliments.
Recommends	–	Husband bought her a topaz ring lined with diamonds at Costco; gets frequent compliments.
Recommends	–	Husband got her wedding set from Costco; calls it gorgeous.
Recommends	–	Husband bought a 3.5ct cushion-cut solitaire plus a matching wedding band there during a sale; most of her jewelry has come from Costco since.
Recommends	–	Husband bought her ring from Costco; says she's heard Costco jewelry typically appraises well above cost.
Recommends	–	Bought two 1.5-carat platinum mined-diamond anniversary bands here at a great price
Recommends	$5,000	Bought a princess-cut natural diamond ring in person, upgraded to 1.02ct VS1 excellent cut; pricing landed close to online-vendor rates and liked having a return option.
Recommends	–	Bought the engagement ring there at a very good price; the certificate supplied with stones over 1 ct made insuring it easy
Recommends	–	Ordered a ring online, did not like how it looked, and returned it with no hassle
Recommends	–	Wife's combined engagement and wedding ring from Costco draws a large number of compliments
Recommends	–	Two small stones fell out of her ring; Costco sent it away and had them replaced at no charge
Recommends	–	Platinum wedding bands; both between sizes, so staff advised ordering two sizes each online and returning the misfits; shipping was free
Recommends	–	Upgrade ring was good value and still sparkles and draws compliments about 3 years later
Recommends	–	Platinum engagement ring that gets compliments everywhere; planning to add a platinum diamond band from the same store
Recommends	–	His own wedding band arrived too big and was exchanged easily; much cheaper than the quote from the jeweler who made his wife's custom rings
Recommends	–	Bought an expensive ring with a certificate; says pricing runs about 10% over wholesale; calls it the best buying experience
Recommends	–	Certificate with purchase; warehouse rings come in size 7; bought the last display piece of a design for 100 off, and the display stone was real
Recommends	–	Happy with every jewelry purchase the couple has made there
Recommends	$200 to $600	Solid gold bands: hers 3mm for under 200, his 6mm beveled for 500-600, each far below other stores; no regrets
Recommends	–	Ring inspected regularly with no problems; a gemologist at another store mapped the stone and was impressed with its quality
Recommends	–	Both her engagement ring and wedding band came from Costco and she loves them
Recommends	–	Husband's plain gold band was the cheapest by far and arrived promptly in a wooden box
Recommends	$6,500	Emerald-cut set ordered on the website in 2016 for about 6,500, appraised at 11,800; downside is you cannot pick the exact stone, and hers is slightly yellow
Recommends	–	Anniversary band lost a diamond when a prong loosened; Costco had it fixed and promised a refund if it happens again
Recommends	–	Wife's diamond came loose; repaired free and returned polished; the lifetime warranty requires keeping the certificate
Recommends	–	Wedding set worn for almost 10 years; came with certificate and appraisal papers; appraised about 3k above what they paid
Recommends	–	Her wedding band came from Costco and she loves it
Recommends	–	Men's wedding band; ordered three sizes, kept the one that fit and returned the others without trouble
Recommends	–	Husband bought both her engagement ring and wedding ring there; her only complaint is a joke about lacking a Kirkland engraving
Recommends	–	Diamond wedding band so well made that the family jeweler appraising it assumed it was one of their own
Recommends	–	Husband got a good deal; the ring looks more expensive than it was and draws compliments
Recommends	$3,299	Ring for 3,299 appraised at 4,700 a month later and held up over 8 years of daily wear; each warehouse carries designs not sold online
Recommends	$1,200	Large-looking ring for about 1,200 that someone guessed cost around 5,000; still looks as it did at the counter
Recommends	–	Her band and his gold band bought 10 years ago; none of her 5 small diamonds has come loose; plans to keep buying jewelry there
Recommends	$5,500	Round six-prong ring bought for 5,500 appraised just under 11,000 and came better and bigger than listed; no 2mm platinum band there, so her band came from a local jeweler
Recommends	–	Engagement ring appraised better than Costco's own description of it
Recommends	–	Almost 8 years with a half-carat center and 50+ accents, none lost; appraised well above cost; downsides: no rose or yellow gold, few shapes, halos need cleaning
Recommends	–	About 10 years ago her center diamond snapped off years after purchase; member services sent the ring out and it returned weeks later with a new center stone
Recommends	–	20+ years of jewelry purchases there with consistently good quality and value
Recommends	–	Proposal ring came with full paperwork and very good quality; only gripe is an ugly ring box
Recommends	–	Ring bought in 2019 lost an accent diamond in 2022; Costco refunded it and she chose a new one
Recommends	–	The exact same engagement ring was 300-400 more at other jewelers; the only drawback was a single size
Recommends	–	One-of-a-kind ring with a graded center stone; no suitable band, so a local shop modified it; would buy there again
Recommends	–	Wedding band bought at a steep holiday markdown and replaced when it arrived a bit large; suggests buying around Black Friday to Christmas
Recommends	–	Classic solitaire with GIA and conflict-free paperwork; good customer service; wife loves it
Recommends	–	Bridal set and his band; exchanged sizes twice for his band; a local appraisal came in about 10% above the price
Recommends	–	Engagement ring from Costco; recommends it without reservation
Recommends	–	Upgrade ring worn without worry because Costco covers repairs if it is damaged or loses a stone
Recommends	–	Picked a ring without knowing her taste; after nearly a year she chose another ring and Costco refunded the first to his card
Recommends	–	His wedding band matched the listing at a great price; the engagement ring went to another jeweler because Costco had nothing close to her unusual taste
Recommends	–	Owns the same band in yellow gold and platinum plus an emerald-cut solitaire engagement ring; had prongs checked at a jeweler after reading negative reviews about stones falling out, and it was confirmed fine
Recommends	$4,800	Sister-in-law's ring from Costco, about $4,800, described as beautiful and came with a diamond certification
Recommends	$999	Owns a 1 ctw gold band that periodically goes on sale for $999, plus two lab-created emerald and diamond rings from Costco; no complaints
Recommends	–	Bought two 1.5 ct platinum diamond anniversary bands from Costco for a 36th anniversary and loves them
Recommends	$1,000	Bought a wedding band from Costco for less than $1,000 and loves it
Recommends	$10,000	Husband paid about $10,000 online for a 1.4ct IF ring that was later insurance-appraised at $30,000
Recommends	–	Thrilled with a Costco diamond band, though Costco doesn't do quarter sizes and a local jeweler quoted almost double to resize it
Recommends	–	Buys all diamond jewelry from Costco now, citing high quality and a fantastic return policy
Recommends	–	Owns several Costco jewelry pieces including a diamond ring; three other jewelry stores couldn't match the price paid
Recommends	–	Husband has worn his Costco band about 2 years, describes it as great quality and comfortable.
Recommends	–	About one year in, says the ring has held up great.
Recommends	–	Bought a 14K gold band that cost about half what a jeweler quoted; worn daily since September and holding up well.
Recommends	–	Loves the ring; got the wrong size initially and returned it in-store with no problem.
Recommends	–	Wore the same Costco band every day for 15 years and loved it.
Recommends	–	Currently wearing the Costco band in question, calls the price unbeatable.
Recommends	–	Recommends Costco's solid 14k gold jewelry as classic, good-value pieces that can be worn every day for years.
Recommends	–	Bought his wife's engagement ring there; priced much lower than competitors and she loves it.
Recommends	–	Says Costco caps jewelry markup at 15% like other categories, and his jeweler mother-in-law approves of the value.
Recommends	–	Owns several pieces including an anniversary band that has held up well over time
Recommends	–	Bought his wife's engagement ring there and both were very happy; believes most of their diamonds are natural
Recommends	–	Platinum diamond wedding band graded better quality and heavier than the certificate stated when independently checked
Recommends	–	Bought wife's engagement ring there after shopping around and found it a very good deal; diamonds were certified
Recommends	–	Long-time regular jewelry shopper there; every piece appraised higher than what was paid; says quality and price cannot be matched elsewhere
Recommends	–	Bought a Costco ring too and ended up with a higher grade than expected for the same price as other retailers
Recommends	–	Bought both her rings from Costco in 2008; daily wear for over a decade with lots of compliments, no regrets, cleaned once a year.
Recommends	–	Bought on a smaller budget and has no regrets; ended up having the center gemstone altered elsewhere, but said the band itself was an amazing deal.
Recommends	–	Bought an engagement ring set from Costco in 1997; later upgraded once he could afford better, but calls it a very nice set he intends to pass down to his kids.
Recommends	–	Bought a diamond solitaire with two diamond-lined bands to match, all platinum, about 9 years before the comment; pieces have held up well under daily wear and a jeweler praised the quality when serviced.
Recommends	–	Bought a matching engagement ring and wedding ring set from Costco; 1.5 years in, both still look beautiful and sparkly, no regrets.
Recommends	–	Bought a ring from Costco and calls it a great deal with high quality and good customer service
Recommends	–	Bought several jewelry pieces from Costco, says the value is unmatched even though the box is cheap
Recommends	–	Diamonds bought at Costco have since been appraised at multiples of what was paid
Recommends	–	Engagement and wedding rings from Costco appraised higher than the price paid; no issues after 12 years
Recommends	–	Wife is happy with Costco jewelry purchases, though she otherwise wears Tiffany
Recommends	–	Calls Costco diamonds a fantastic buy priced 10-15% above wholesale; bought a 1.7ct IF diamond there
Recommends	–	Bought a ring from Costco for herself years ago, calls it excellent quality and reasonably priced
Recommends	–	Buys jewelry at Costco regularly and waits for the early-December holiday sale
Recommends	–	Bought an engagement ring at Costco during a regular shopping trip and got a nice rebate on it.
Recommends	C$5,000	Bought a 1ct princess solitaire for about $5k plus tax, graded G VVS2 despite an I-VS2 listing, appraised at $14k
Recommends	–	Owns a 2ctw diamond eternity band and other pieces from Costco, all G color VS1 clarity, says price and quality are hard to beat
Recommends	–	Says Costco includes GIA reports, has strong buying power and good gold pricing; returns of 1ct+ stones need gemologist review, no resizing, rings run about size 7
Recommends	–	Bought an infinity band there for an anniversary, trying three different carat weights before settling; called it similar quality to Tiffany for much less
Recommends	–	Says Costco's color/clarity grading is conservative, with the certificate stating a minimum standard rather than the true grade
Recommends	$520	Bought 14k yellow gold natural diamond hoop earrings, 0.34ctw VS2/I color, for $520
Recommends	$4,999	Engagement ring cost $4,999 and later appraised around $20,000
Recommends	$599 to $800	Bought a diamond band for about $800, later saw the same style drop to $599; also owns a 3ct tennis bracelet from there
Recommends	–	General success with Costco diamond jewelry, typically appraises higher than cost
Recommends	–	Owns several Costco pieces including a platinum five-diamond band that has held up well
Recommends	–	Has bought many diamond pieces over the years, all appraised for well more than paid, never a problem
Recommends	–	Bought two diamond eternity bands online about 6 months earlier, appraised for much more than paid, easily returned one in-store
Recommends	–	Used to sell diamonds directly to Costco and calls their quality top-notch with some of the lowest markups in the industry
Recommends	–	Special-order engagement ring, IF clarity/F color, appraised at 3x what was paid, can be returned anytime
Recommends	$7,000	Paid $7k for a ring nearly identical to the asker's; it appraised at double the purchase price
Recommends	–	Bought wedding bands from Costco 30 years ago; still wearing them
Recommends	–	Ring, plus a later matching necklace and earrings, all from Costco; calls their diamond pricing unbeatable
Recommends	–	A former IGI grader who evaluated Costco's jewelry professionally says the pieces are well made and reasonably priced, and recommends shopping there first
Recommends	–	Sapphire-and-diamond engagement ring bought from Costco; loves it
Recommends	–	Ring appraised at more than twice the purchase price when insured and has doubled in value again since; highly recommends Costco diamonds
Recommends	–	Most of his wife's jewelry comes from Costco; considers it good quality
Recommends	–	Bought his wife's wedding band at Costco after buying her diamond elsewhere; an outside jeweler recognized it as Costco's own work and appraised it very well
Recommends	–	Says several pieces bought for his wife have appraised well above what he paid
Recommends	–	Mentions Costco ran a jewelry clearance near melt price around Christmas
Recommends	–	Agrees Costco has good jewelry deals sometimes
Recommends	–	Husband bought her a 3-carat 5-stone diamond ring there; comfortable for daily wear compared to an eternity band.
Recommends	–	Owns multiple Costco eternity bands, says they look spectacular in person.
Recommends	–	Bought fiancee's ring at Costco, impressed by the quality for the price, came with certifications
Recommends	–	Bought a channel-set diamond band from Costco in 2009, great quality, zero regrets, would buy again
Recommends	–	Owns several Costco diamond pieces, describes them as top quality, and has never needed to return anything
Recommends	$1,800	Bought a diamond ring at the Costco pickup window for about $1,800 after being told the display sample was the last one in stock
Recommends	–	Wedding ring bought 23 years ago with no issues
Recommends	–	Bought a non-engagement diamond ring from Costco, calls it stunning and says she paid very little; wishes she'd bought her engagement ring there too
Recommends	–	Bought several pieces from Costco, says pricing was on point and cheaper than a local jeweler; advises checking color and clarity specs
Recommends	–	Owns a similar Costco ring, gets many compliments, and considers the price very good for a natural diamond
Recommends	–	Engagement ring and wedding band both bought at Costco; praises the quality and the no-time-limit return policy
Recommends	–	Years of Costco diamond jewelry purchases, never returned anything, no stones ever fell out, quality better than chain jewelers
Recommends	–	Bought her engagement ring at Costco; a jeweler in Europe was impressed by the diamond's quality while resizing it
Recommends	–	Bought several diamond pieces at Costco, satisfied with all of them, praised the very generous return policy
Recommends	–	Fiance bought her engagement ring at Costco; loves the sparkle and gets compliments on it daily
Recommends	–	Three years wearing a Costco diamond necklace with no issues; after getting engaged compared Costco's grading to jeweler prices and found better specs for the same money, though selection is limited
Recommends	–	Owns a similar Costco eternity band over a year with no issues; upsized half a size, added sizing beads, checks stones periodically, insured it
Recommends	–	Husband bought an eternity band there; returned it only for personal taste, ended up happy with a different Costco ring, says she loves their jewelry
Recommends	–	Bought a 2ct total-weight diamond tennis bracelet there last year; says it's a perfect everyday and event size and recommends going smaller for a first piece
Recommends	–	Pushes back on people who dismiss Costco jewelry, says they carry some nice pieces
Recommends	–	Recommends buying the bigger carat weight since buyers tend to want more later; loves Costco jewelry overall
Recommends	$2,500 to $4,699	Appraiser of decades of experience says Costco/Sam's Club jewelry she has appraised is consistently well priced with good stones, across many styles
Recommends	$1,000	Wife's ~$1,000 diamond halo ring; a stone fell out after two years and Costco replaced it and polished the ring free of charge
Recommends	$697	Bought several pieces including a clearance lab-sapphire ring with diamond baguettes for $697; a loose stone was fixed quickly and a jeweler later offered to buy it back at 150% of that price
Recommends	–	Husband's Costco engagement ring diamond was checked by an independent jeweler who called it excellent quality with no visible flaws
Recommends	$7,000	An upgraded ring bought for about $7,000 appraised for insurance at just over $11,000
Recommends	$3,000	Wedding ring with roughly 1.5 total carats of VS2 diamonds and an 18k white gold band cost about $3,000; guests guess $8,000-$10,000
Recommends	–	A local jeweler examining a Costco ring under a scope for resizing told the buyer they'd gotten a good deal on it
Recommends	$2,000	A wedding band for $2,000 that looks bigger than anything comparable found elsewhere
Recommends	–	Certified diamonds described as high quality and good value, with a tip to get screw-back earrings so stones don't come loose
Recommends	$3,000	Picked an engagement ring under $3,000 that friends and family assumed cost around $20,000
Recommends	$1,000	A diamond wedding band bought for about $1,000
Recommends	–	Says pieces come with certificates and good pricing, especially clearance items marked with .97 endings on the website.
Recommends	$4,000	Ring cost $4k and appraised for $10k after months of comparison shopping; no other store matched the price for the specs.
Recommends	–	Bought a necklace and bracelet last year, both sturdy, and felt the gold markup was low.
Recommends	$10,000	Bought wife's engagement ring at Costco 18 years ago for $10k, appraised for double; jeweler said the clarity exceeded expectations.
Recommends	–	Everyday white gold and diamond hoop earrings bought years ago remain a favorite, never taken out.
Recommends	–	Most of her jewelry collection is from Costco; substantial pieces for the price versus higher-markup stores like Nordstrom, though styles rotate so it takes checking back.
Recommends	–	Took a Costco engagement ring to a local jeweler for fun, who found no visible flaws despite it being sold with an allowance for up to two; still perfect after almost seven years.
Recommends	–	Has good jewelry finds but a small selection
Recommends	–	Bought diamond studs there that are very sparkly, eye clean, and a great price; good for building a basics collection
Recommends	–	Bought his fiancee's engagement ring there and she loved it, no price given
Recommends	$3,000	Owns three Costco diamond rings that appraised for double what she paid; a local jeweler praised the quality, and a $3,000 ring bought in the wrong size was easy to return in store
Recommends	–	Personally bought his ring from Costco
Recommends	$1,100	Bought an 18k solid gold 1ctw natural diamond eternity band online for warehouse pickup; easy return option and a wide range of eternity band sizes available
Recommends	–	Wife's white gold wedding band from Costco was thousands less than an identical ring from independent jewelers; owns multiple Costco jewelry pieces
Recommends	–	Wife's thicker platinum band (2x weight) from Costco is great quality; a local jeweler custom-made a matching wedding ring to pair with it
Recommends	–	Has a platinum anniversary band from Costco received on a 10th anniversary
Recommends	–	Bought the proposal ring at Costco for the easy return policy in case of a no; 13 years later still happy with the choice
Recommends	–	Bought two platinum rings from Costco after a gold-plating allergy; appraisal came back 2.5x what was paid, and the jeweler was impressed with the quality
Recommends	–	Husband buys all gold jewelry from Costco, trusts the pricing, has never been disappointed
Recommends	–	Her own 1-carat princess-cut engagement ring came from Costco; loved the sparkle and encouraged the person asking to keep his
Recommends	–	Quality solid for the price; felt like paying for the diamond, not for brand markup
Recommends	$300	Mother-in-law's ring cost $300 at Costco versus about £1,100 for a similar ring in the UK
Recommends	$2,000	1.75 ctw princess-cut diamond stud earrings in white gold for under $2k, always clean stones
Recommends	$300	Gold necklace bought 3 years ago for $300 now retails around $600
Recommends	–	Husband's sterling silver bracelet from 7 years ago still looks pristine
Recommends	–	An E/VS2 1.02ct diamond and a separate I/SI1 0.8ct diamond from Costco look equally good despite the grade gap
Recommends	–	Engagement ring bought about 10 years ago; excellent value on a natural stone, though lab-grown now offers a bigger stone for the price
Recommends	–	Ring feels sturdy and well made; Costco diamonds run VS2 or better and I-color or better
Recommends	$1,265	Ring set cost $1,265 and appraised elsewhere for $3,650; a second Costco ring set from 20 years ago is still perfect
Recommends	–	Multiple wedding bands from Costco have all appraised for at least double what was paid
Recommends	–	Ring set has held up for 11.5 years and still looks as beautiful as the day it was bought
Recommends	–	Was proposed to with a Costco ring that also came in with better specs than advertised; loves the ring
Recommends	–	Works in the natural diamond trade and still buys pieces personally; says Costco jewelry consistently appraises above purchase price
Recommends	–	Bought diamond earrings, a diamond ring and a gold bar over two years; good quality and got a refund on a broken earring clasp
Recommends	$1,000	Friend's ring was a little over $1,000; Costco does not size in-house so it was sized at Kay's afterward
Recommends	–	Bought his wife multiple pieces from Costco over time and she has liked all of them
Recommends	–	Husband's gift of a 5ct tennis bracelet; appraised for more than double the price paid, loose clasp but has a safety lock plus an added safety chain
Recommends	–	Owns two tennis bracelets and a necklace worn daily for 8+ years; says quality holds up better than an overseas vendor's or a friend's brand-name bracelet, which snapped and needed paid repair while Costco fixes for free
Recommends	$4,000 to $4,500	5ct natural diamond tennis bracelet bought in 2020 for about $4,000-4,500; worn daily since, prongs checked twice, still like new
Recommends	$30,000	Bought a 2.4 ct D color VS1 diamond for about $30k six years ago; says a Tiffany equivalent would cost nearly double
Recommends	–	Owns a 5-carat total weight Costco tennis bracelet with natural diamonds; very happy with the sparkle and calls it great value.
Recommends	–	Bought a 1ct+ VSi-I platinum bezel scatter ring and a 25th-anniversary sapphire and diamond baguette ring; praises durability for everyday wear
Recommends	–	Long-time shopper says value is usually there and quality beats designer stores where you pay for the name, though she wouldn't buy her own studs or engagement-ring stone there
Recommends	–	Husband bought her an amethyst and diamond anniversary band in 14K white gold, worn every day since
Recommends	$999	Bought a 1 ctw eternity band on sale for $999 plus a deal on 1 ctw princess-cut studs
Recommends	–	Bought a plain platinum wedding band to match an engagement-ring setting from Ritani, then had a jeweler solder the two rings together
Recommends	–	First Costco diamond purchase, 2.5ctw G VS2 hoop earrings bought $500 off; praises the whiteness and sparkle and the easy return policy as reassurance
Recommends	–	Owns a 1 ctw platinum eternity band bought on a past sale and loves it
Recommends	–	Tried on 3ct and 5ct diamond bracelets in store, found them beautiful and good value, with easy returns if unsatisfied
Recommends	–	Bought a 4ctw tennis bracelet on sale, backed by Costco's strong return policy; independent appraisal came back EFG color, VS-VVS clarity, excellent cut.
Recommends	$5,000	Bought a 5ctw tennis bracelet after comparing vendors and bracelets for two years, came in under her $5k budget and calls it the best value found; later got a $300 price-adjustment refund within 30 days of buying
Recommends	$2,500	Bought a tennis bracelet on a past holiday sale for $2,500, and separately says her Costco eternity band sparkles a lot and appraised as FG color
Recommends	$699	Bought lab-emerald and diamond earrings as a gift there; store currently lists the same piece at $699 and included gem certification paperwork with the purchase
Recommends	–	Says Costco jewelry is definitely returnable in the US, based on personally returning a piece there
Recommends	$400	Pointed to Costco's 14k gold necklaces around this price as a solid-gold option that avoids tarnishing
Recommends	C$5,000	5-stone ring graded far better than the advertised minimum on independent appraisal; easy returns even after resizing, plus a required 6-month setting inspection
Recommends	$799 to $899	Bought two platinum diamond wedding bands (0.50ctw F VS2 for $799 and 0.63ctw I VS2 for $899) to compare against a 1.75ct solitaire before choosing which to keep
Recommends	$460	Bought husband's wedding band with outside engraving for $460 total vs an $815 insurance-equivalent retail value; plans to buy there again for an upgrade
Mixed	$1,865	$1699+tax natural-diamond bridal set; a jeweler here warned the diamond-on-diamond cluster center isn't a secure setting, though the bands are channel-set and Costco's return policy covers problems
Mixed	$1,699	Bought a floating diamond band for $1,699 after markdowns but returned it over concerns the diamonds weren't secure enough
Mixed	–	Former employee: high quality for the price plus cash back with the executive membership/credit card, but no free resizing, cleaning, or real guarantee if a stone is lost; chose to buy elsewhere for the after-care.
Mixed	–	Was told Costco doesn't offer a lifetime warranty or free cleaning; cleaning elsewhere runs over $75 round trip
Mixed	–	Platinum anniversary band; a diamond on one end fell out but Costco replaced it immediately with no further issues; standard size 7 fit with no resizing needed
Mixed	–	Bought a ring online with a band of about 10 diamonds; a stone fell out within a year but Costco repaired it for free and it came back looking new
Mixed	$3,500	$3,500 engagement ring was returned after finding a cheaper, bigger, better-graded lab diamond elsewhere
Mixed	$10,000	~$10k engagement ring had to be returned since the setting did not match the website photos, but the refund was smooth
Mixed	$3,000	Loves her princess-cut Costco ring bought on sale for about $3k, but says the I-color stone shows a slight yellow tint in person
Mixed	–	Bought diamond earrings happily but returned an engagement ring set; found pricing reasonable but not a steal, good return policy, no resizing or cleaning services, limited in-store ring sizes
Mixed	–	Says she works at Costco; recommends getting diamonds verified since a member's stone once turned out fake, though the store does have a testing machine.
Mixed	–	Liked the diamond value for the money but found nothing close to a princess cut on a plain gold band, so did not buy there
Mixed	–	Travel diamond band is pretty but fits imperfectly since Costco does no sizing; returned princess-cut earrings 4 times for uneven prongs and oddly shaped stones
Mixed	–	Considered a Costco ring for its quality but lacked the cash, and only mall stores offered payment plans
Mixed	–	Went with a chain jeweler instead because Costco does not do resizing or jewelry work in-house and only offers a refund, not repair or replating, if something goes wrong.
Mixed	–	Went to a chain store instead because Costco's men's ring selection felt too limited, and was unsure if Costco offers free lifetime resizing/repairs like the chain does.
Mixed	$4,600	The 1ct emerald-cut, dual-graded diamond ($4,600 w/tax) was great value, but the ring's platinum Costco setting tarnished very quickly, so they had a local jeweler build a custom 14k gold setting instead.
Mixed	–	Loves the ring but Costco only sells one ring size and doesn't offer resizing, so a separate resize was needed
Mixed	–	A competing jeweler says a client's Costco tennis bracelet (VS clarity, H color) looked beautifully cut, but Costco won't resize, rhodium-plate or fix prongs like her own store does for free
Mixed	–	A gifted Costco ring came with only a plain paper description, no GIA report or number, despite others saying Costco always includes GIA
Mixed	–	Return of a diamond piece was accepted in-store but the refund took about a week while Costco verified the stone
Mixed	–	Wife's diamond fell out of its Costco setting, but Costco replaced it with no questions asked
Mixed	–	Seen Costco rings in person; decent for a budget but not the best quality compared to local jewelers or custom shops
Mixed	–	Researched Costco bands before buying and found the metal porous and hard to resize, though rates their diamond quality as very good
Mixed	–	Husband gave her this Costco diamond necklace as a Christmas gift two years ago, but she rarely wears it because it won't lie flat and keeps flipping over
Mixed	–	Bought a similar Costco eternity ring; a diamond fell out after six months but Costco repaired it easily within about two weeks; recommends keeping paperwork
Mixed	–	Only bought gold chains there; Costco does not carry lab-grown diamonds and ring designs are mass-produced, not artisan
Mixed	–	Buys simple gold chains and bracelets there for the price, but other pieces do not suit her estate-jewelry taste
Mixed	$699	Lab emerald-and-diamond necklace for $699; styling is basic but the piece itself is nice
Mixed	–	Diamond earrings are excellent value, but wary that Costco's gold chains are hollow
Mixed	–	Found in-store solitaire pricing competitive with Blue Nile's better Ideal-cut stones, but only size 7 rings are stocked in store, forcing a resize for smaller fingers
Mixed	–	Returned several pieces over the years for poor gemstone quality or uncomfortable settings, but says returns are painless and it lowers the stress of buying
Mixed	–	Says her Costco diamond hoops sparkle less up close than a premium 'ideal-cut' tennis bracelet, but they get more compliments from a distance because the stones look bigger
Warns	$5,000	Bought a 1.68 ctw diamond ring for about $5,000; when a rebate later made the same item cheaper, tried to return it years after purchase and got contradictory answers between warehouse staff and Member Services before the return was denied
Warns	–	A local jeweler refused to resize the ring once they learned it had been bought at Costco
Warns	–	Side baguette stones meant a jeweler could not size the ring down, leaving it wearable only on a chain
Warns	–	Says their Costco stones were usually a lower color grade, not D or E
Warns	–	Claims from former jewelry-sales experience that diamonds are sometimes drilled to remove inclusions, weakening the stone
Warns	–	Bought a VS1 I-color engagement ring there but found it not comparable in sparkle after comparing to an online vendor stone
Warns	–	Found Costco expensive for what you get; online retailers had better pricing and options
Warns	–	A past personal diamond-ring purchase went badly; lists Costco's lack of stone choice, customization, after-sale service and upgrade programs versus online vendors
Warns	$300	Regrets paying $300 for small diamond studs at Costco, felt they were low quality and overpriced
Warns	$10,000	After researching, chose a custom online price-matched diamond ring for about $2,600 instead, estimating an equivalent Costco ring would have cost over $10,000; says Costco is good for many things but not diamond jewelry
Warns	–	Bought diamond earrings from Costco and was disappointed, felt the stones were very low grade

Questions about buying from Costco

How much does a Costco engagement ring cost?

Buyers paid a median $4,550 for rings from Costco across 44 purchases, half between $3,000 and $7,000. Natural diamond rings there came to a median $5,000 across 26. Diamond, lab or natural not said rings there came to a median $3,700 across 11.

Is Costco good for engagement rings?

Of 314 buyers who described their own experience with Costco, 270 recommend it, 33 are mixed and 11 warn against it.

Is Costco a good place to buy an engagement ring?

One buyer recommends it, saying the $7,000 diamond he received exceeded Costco's guaranteed minimum clarity and colour grades. Multiple buyers recommend it, reporting diamonds graded better than advertised (for example G/VVS2 instead of a listed I/VS2) for prices comparable to or lower than other retailers.

Is Costco a good place to buy an engagement ring diamond?

Many buyers praised Costco's natural-diamond value, saying its markup is capped around 15% and it is hard to beat on price for natural stones, though a few said online vendors can beat it if you're open to lab-grown. Buyers generally say yes for value and return policy, since Costco is the largest diamond buyer in the US and local jewelers struggle to match its prices, though its selection and service (no resizing or cleaning, limited in-store ring sizes) fall short of a dedicated jeweler.

Does Costco sell lab-grown diamonds?

No, several buyers said Costco currently sources only natural diamonds and doesn't yet offer lab-grown options, which some buyers wish would change. No, buyers agree Costco sells only natural diamonds graded VS2/I-color or better, while Sam's Club is reported to carry lab-grown stones instead.

Is Costco a reliable, good-value place to buy diamond jewelry?

Many buyers say yes — Costco is repeatedly called one of the best value options since it only uses 14k+ gold and VS2-or-better clarity as its floor, though its natural stones cost more per carat than buying lab-grown elsewhere. Several buyers who bought Costco eternity bands and multi-stone rings said they look great in person and hold up well for daily wear.

Does Costco jewelry appraise for more than what you paid?

Several buyers say their Costco rings or bracelets appraised 15-20% to as much as double what they paid, but one buyer cautions a high appraisal doesn't mean the piece could actually resell anywhere near that. Sometimes: one buyer's platinum rings appraised at 2.5 times what was paid, and another reported a Costco wedding ring bought for around 15-16k appraising for insurance at over 30k.

How does Costco's diamond quality compare to what's advertised?

Several buyers said their stones came in better than advertised, such as a ring listed as 1 carat 'good' cut that turned out to be 1.07 carats with an excellent cut; Costco typically stocks natural stones at VS clarity or better and I color or better. One buyer's Costco 5-stone ring, advertised as I color VS2-or-better, came back from independent appraisal graded E/F color and VVS1-VS1 clarity, though the cut was only Good to Very Good rather than super ideal.

Is Costco a good place to buy a wedding band?

Most buyers say yes: Costco is regarded as fairly priced on gold with low markup and generally good quality, and its return policy is easy, though it does not do in-house resizing or repair work the way a chain jeweler might. One buyer got a 5mm 950 platinum band from Costco for $570 with free, easy shipping, well under the $1,800-$2,500 local jewelers quoted for a plain 14k gold band of similar width.

Is it cheaper to buy just the diamond at Costco and have a local jeweler build a custom setting?

One buyer paid $4,600 with tax for a 1-carat emerald-cut, dual-graded diamond at Costco, then $1,800 for a local jeweler to build a custom 14k gold bezel setting after trading in the ring's original Costco platinum mounting, and said it was still cheaper overall than buying that quality of diamond from a jeweler directly. Buyers who priced out matching specs elsewhere found real savings: a 1ct lab diamond under $1,000 at Ritani, a whole custom ring possibly under $2,500, and a near-identical build at James Allen running about $6,500 in natural or $3,800 in lab, suggesting a custom build usually comes in lower than a comparable Costco ring.

Is Costco a good place to buy wedding bands

Several buyers recommended Costco for comfort-fit bands starting around $300 each, and one buyer said they saved $300 versus a traditional jewelry store quote by switching. One buyer highly recommended Costco for good prices on quality bands plus an easy return policy if the size is wrong.

Are Costco diamond rings a good value alternative to a luxury brand like Tiffany?

One buyer bought a 1 carat cushion-cut diamond in a halo setting, 2 carat total weight, at Costco for about $5,000 sixteen years before the comment, and figures a similarly specced ring at Tiffany would have run about $27,000.

Are Costco diamonds worth buying?

Most buyers, including two who say they work in the jewelry trade, describe Costco's diamond jewelry as high quality with unusually thin margins, so buyers get more diamond for the money than at chain or department stores, though the style selection is limited.

Are Costco engagement rings actually cheaper than other jewelers for the same quality?

Overwhelmingly yes here: buyers repeatedly reported paying far below comparable options at Zales, Kay or custom jewelers, and several rings later appraised for double to triple the purchase price.

Every Costco ring in the data

Ring	Stone	Carat	Shape	Metal	Year	What the buyer reported
$400	Natural diamond	–	–	–	–	Bought at Costco
$500	Natural diamond	0.5 ct	–	–	1987	Engagement ring bought at Costco in 1987, simple design, writer recalls it fondly decades later
$600	Diamond, lab or natural not said	–	–	–	2023	Used the same ring for both engagement and wedding; bought online sized to her, unlike in-store buys, can't be returned.
$900	–	–	–	–	–	Picked out at Costco; not spent on an expensive symbolic ring since it can be upgraded later
$999	–	0.5 ct	–	–	–	Another buyer says the asker's Costco ring itself was $999, with a 0.5ct center stone and six 0.1ct accent diamonds
$1,100	Natural diamond	1 ct	–	yellow gold	2026	18k solid gold 1ctw natural diamond eternity band from Costco, item #1614197; carat figure is total weight across the band, not one stone
$1,200	Natural diamond	–	–	–	–	Big-looking Costco ring for about 1.2k; someone guessed it cost around 5k; still looks as it did in the display case
$1,200	–	–	–	–	2025	Wedding bands still being shopped for, likely also Costco, under 1000
$1,250	Diamond, lab or natural not said	3 ct	–	–	–	Paid about what a 1-1.5ct ring would cost at Kay for a 3-carat ring, per his own comparison.
$1,265	–	–	–	–	–	Ring set from Costco cost $1,265; another jeweler appraised it at $3,650
$2,000	Diamond, lab or natural not said	–	–	–	–	Ring type not specified; writer doubts they could resell it for even 500
$3,000	Natural diamond	1.25 ct	princess	platinum	–	1.25 ctw princess-cut and round-brilliant Costco wedding ring set, given to her on sale for about $3k; carat is total weight, not center stone
$3,000	Diamond, lab or natural not said	–	–	–	–	Friends guessed he'd spent $5k-$6k on it; it appraised at $10k.
$3,000	–	0.6 ct	–	white gold	–	Wife's ring; about 1.5 total carat VS2 diamonds, .6ct center, 18k white gold; guests guess it cost $8k-$10k
$3,000	–	–	–	–	–	Ordered the wrong size on this Costco ring and returned it easily in store
$3,299	Natural diamond	–	–	–	2015	Design stocked only in warehouses, never online; appraised a month after purchase; 8 years of daily wear; matching band from a local jeweler
$3,500	Diamond, lab or natural not said	–	–	–	–	Returned this Costco engagement ring after finding a cheaper, bigger, better-graded lab diamond ring at James Allen
$3,500	Natural diamond	–	–	–	2025	Bought at Costco, which the writer said sells only natural diamonds, for $3,500; appraised by a local jeweler at $11,500 shortly after
$3,500	Natural diamond	–	–	platinum	–	Bought on sale; listed price unchanged for 5 years at $4,600
$3,700	Diamond, lab or natural not said	–	–	–	–	Appraised noticeably higher than the purchase price; the jeweler doing the resizing called it very high quality.
$4,000	Natural diamond	–	–	–	2026	Costco diamond ring cost $4k and appraised for $10k after months of comparison shopping; no other store matched the price for the specs.
$4,500	Diamond, lab or natural not said	–	–	–	–	Independent jeweler said the diamond's clarity, cut and color beat what Costco listed; only the weight matched.
$4,600	Natural diamond	1.68 ct	–	–	2022	Same cluster/halo design as the asker's ring, bought as a wedding-ring upgrade; later appraised well above purchase price
$4,699	Natural diamond	5 ct	–	–	2022	5 ctw natural-diamond eternity band, $4,999 less $300 promo, bought online at Costco; VS2 clarity, I color, ordered size 7.
$4,999	Natural diamond	–	–	–	–	Engagement ring from Costco; later appraised at about four times what was paid
$5,000	Natural diamond	1.02 ct	princess	–	2023	Went with a Costco princess-cut natural diamond ring, sizing up to 1.02ct VS1 excellent cut; pricing landed close to James Allen/Blue Nile equivalents.
$5,000	Natural diamond	1.68 ct	–	–	2022	1.68 ctw total weight across multiple stones, not one diamond over 1ct; a manufacturer rebate years later made the identical item cheaper
$5,000	Natural diamond	1 ct	cushion	–	2009	1ct cushion center in a halo setting, 2ct total weight including halo stones; bought about 16 years before the comment
$5,500	Natural diamond	–	–	–	–	Friend said the Costco jeweler charges Costco about 15% of cost; ring with a claimed $20k retail value cost $5,500 there.
$5,500	Natural diamond	–	round	–	–	Writer calls it her diamond, but Costco sells only finished rings; six-prong round; bigger and better than listed; appraised a bit under 11k
$6,000	Natural diamond	1 ct	round	–	–	Round 1ct solitaire ordered online, medium blue fluorescence
$6,000	Diamond, lab or natural not said	1.07 ct	–	–	–	Listed as 1ct good cut but actually 1.07ct excellent cut; appraised just under $11,000.
$6,400	Natural diamond	1 ct	emerald	gold	2024	1ct emerald-cut, dual-graded diamond bought at Costco ($4,600 w/tax); local jeweler built a custom 14k gold bezel setting for $1,800, net of trading in the ring's original platinum Costco mounting
$7,000	Natural diamond	–	–	–	–	Bought a ring nearly identical to the asker's at Costco; paid $7k and it appraised at double that
$7,000	–	–	–	–	–	Upgraded ring from husband; appraised for insurance at just over $11k
$7,999	Natural diamond	1 ct	oval	platinum	2026	2.35 CTW halo ring with 1ct oval center plus 19 side diamonds in platinum 950; ordered and awaiting delivery
$10,000	Natural diamond	–	–	white gold	–	Solitaire ring from Costco in white gold; planning a reset into platinum for about $2k more, not yet done
$10,000	Diamond, lab or natural not said	–	–	–	2023	Bought fiancee's engagement ring at Costco, calls it beautiful
$10,000	Diamond, lab or natural not said	–	–	–	2016	Engagement ring roughly the same ~$10k price as a nearby Costco buyer; returned once since the setting did not match the website photos, refund went smoothly
$10,000	Natural diamond	1.4 ct	–	–	–	Husband bought it through Costco's online store; ring was later insurance-appraised much higher
$10,000	Natural diamond	–	–	–	2008	Engagement ring bought at Costco 18 years before the comment for $10k, appraised for double; jeweler said clarity exceeded expectations.
$24,000	Diamond, lab or natural not said	–	–	–	–	Bought wife's engagement ring via Costco.com, valued the return protection and lower price versus other options; got a cash-back rebate that year
$30,000	Natural diamond	2.4 ct	–	–	2020	Costco diamond, color D, writer called it 'flawless' but graded VS1; said a same-spec Tiffany ring would cost roughly double

Sources and method

Price reports on this page come from 73 public discussions where buyers answered in their own words. Each comment that stated what someone paid became one row; notes are paraphrased, never quoted.

The largest discussions used here (60)

2026-01: I don’t mean this rudely at all but is everyone posting here marrying rich guys or are my standards just not attuned to what the norm is these days? (533 comments)
2017-06: Show me your Costco diamonds. (446 comments)
2025-10: Warning about Tiffany & Co (372 comments)
2023-01: Who actually buys the $100k jewelry from Costco.com? (332 comments)
2021-09: Where to buy engagement ring in Ontario ? (272 comments)
2023-11: Found this particular ring at Costco Wholesale, is it a good quality ring for the price? (264 comments)
2022-08: Cheap wedding ring (256 comments)
2025-02: Thoughts on this costco ring? (226 comments)
2024-07: When comparing apples to apples, are Costco engagement rings cheaper than other jewelers? (216 comments)
2022-09: I’m ready to pop the question, and I am leaning towards this ring from Costco. Anyone have any experience with purchasing from Costco that they’d like to share? I am open to purchasing from elsewhere if the deal is there. Thanks! (186 comments)
2025-12: I’m going to propose. (172 comments)
2023-04: I don't see much Costco jewelry on here. My husband got me a diamond and emerald ring for our anniversary last week. (166 comments)
2026-05: Beautiful diamond Costco ring! (165 comments)
2025-07: How much did you spend on an engagement ring ? (165 comments)
2023-10: Engagement/ wedding rings through Costco (154 comments)
2024-11: I’m planning to purchase a ring for my wife from Costco, is it a good deal? (145 comments)
2026-07: Are tiffany diamonds actually worth it? (145 comments)
2026-05: Is Costco jewelry actually good quality or overrated? (137 comments)
2026-05: Boys, help your man out. Where to shop for affordable engagement rings? (125 comments)
2025-02: Engaged with a ring from Costco (115 comments)
2025-11: Saw a deal at costco. 300$ off on this necklace ($999). Are costco diamonds worth it? Ive never bought a piece of jewlery in my life so would greatly appreciate any insights. (106 comments)
2022-12: Calling all experienced Diamond lovers (104 comments)
2025-12: Costco diamonds? (93 comments)
2026-02: Where do people usually buy good-quality jewelry at reasonable prices? (91 comments)
2025-02: How do big stores actually sell jewelry at their prices (88 comments)
2025-10: Costco ring - good price? (86 comments)
2025-08: Costco Diamond bridal ring set . Shall I keep it ? (85 comments)
2023-11: My wedding combo!!! Band bought from Costco! (77 comments)
2026-05: Costco 1.3 carat, H color, IF clarity. Feeling so lucky. (70 comments)
2021-12: Thoughts on Costco engagement rings? (65 comments)
2023-03: I absolutely adore this ring at a local pawn shop and keep going in to look at it. He’s asking for 1/2 the appraisal, so $3500. Does this seem like a fair price for secondhand? The diamond info is in the pic 💎 (61 comments)
2026-01: Costco diamond ring return experience – policy contradictions, missed rebate, and zero ownership (58 comments)
2023-07: Shopping for an engagement ring. Generally speaking, which of these online retailers can be trusted? (58 comments)
2025-12: Is this Costco ring a good deal? On sale for $3,199. Originally $4,699 (58 comments)
2025-06: How much did you spend on your ring? (56 comments)
2025-06: Costco diamond ring help (48 comments)
2023-03: Would like some opinions and pointers please. So these are the 3 rings my girlfriend picked out. Costco is selling them, all are vs2 quality. My question is this a good price for vs2 quality or should I look somewhere else for the same type of ring? The last two 5999 price is the same ring (47 comments)
2021-08: Where do you shop for engagement rings in San Jose / Bay Area ? (47 comments)
2021-09: Where to find wedding bands that don’t cost $$$$$$$? (47 comments)
2026-04: Is this a good deal? 2.35 CTW diamond engagement ring from Costco ($8k) (46 comments)
2025-02: Costco Diamonds (44 comments)
2025-03: Help a (mildly clueless but well-meaning) husband upgrade a 15-year-old classic Tiffany-style ring! (43 comments)
2023-08: What are people thoughts on this Costco diamond ring 💍 for ~$5k?? (42 comments)
2026-02: What are the best local jewelers for an engagement ring? (I'm getting ready to propose to my girlfriend) (40 comments)
2023-01: Where is a good place to get an engagement ring? (39 comments)
2022-10: fluorescence I didn't know before I bought the diamond what the Gia report meant so it says very strong blue should I return the whole ring I had made at James Allen it's a d color 1.51 carat VS1 Marquis earthmind (38 comments)
2023-03: Would like some opinions and pointers please. So these are the 3 rings my girlfriend picked out. Costco is selling them, all are vs2 quality. My question is this a good price for vs2 quality or should I look somewhere else for the same type of ring? The 1699 & 5999 has two picture for the same ring (35 comments)
2026-06: Why are Costco diamond tennis bracelets so much cheaper than most jewelry stores? (34 comments)
2021-04: Diamond Ring, Where to get best value (34 comments)
2025-11: 2ct vs. 3ct natural diamond from Costco (31 comments)
2026-01: Is Costco Jewelry High Quality? (30 comments)
2024-01: Update on the "scam" $10-$25 diamond jewelry from JCPenney (29 comments)
2024-08: What do think about the quality of Costco diamond jewelry? Is price reasonable? (26 comments)
2026-07: How many carats is your diamond and how much was it? (25 comments)
2026-08: Mejuri Lab Grown Tennis Bracelet (1.8mm, white gold) vs Costco (25 comments)
2021-12: Costco 2ctw 5 Stone Ring Surprise and Delight! - Size 5 (23 comments)
2023-06: Gem jewelers co - are they legit? (Looking for well priced diamond tennis bracelet!) (21 comments)
2022-12: How is the quality of Costco jewelry (21 comments)
2025-04: Buying an engagement ring on a budget: Is Costco a good option? (21 comments)
2025-11: My Costco ring! (19 comments)
and 13 more, all in the dataset

A ring counts for Costco when its buyer named the store; the store's channel (Costco and warehouse clubs) comes from its name rather than from each buyer's description. Prices are in US dollars and cover the ring as a whole. Verdicts count one line per buyer, and only buyers who bought or priced there themselves.