Do Lab-Created Diamond Engagement Rings Hold Their Value?
No, not in the way you hope. If you sell lab-created diamond engagement rings, you won’t get anything close to what you paid, and some of the buyers won’t make an offer on the stone at all. Seller estimates of value for used lab-created diamond engagement rings range from about 5% to 40% of the original retail price. Most land between 10% and 30%.
Even natural diamond rings lose value on resale too. They tend to keep a larger share, though still well below what was paid. The cause of this price depreciation isn’t that the diamond was grown in a lab. A ring’s retail price includes the store’s costs and profit, and no buyer pays that part back.
Lab-created stones add another problem: new lab-created engagement rings keep getting cheaper, so there is little reason to pay much for a used one. This guide covers what amount of money you can realistically expect, who buys a used lab-created ring, and what helps a ring hold more value.
How much is a lab-created engagement ring worth when you sell it?
There is no official price guide for second-hand lab-grown diamond rings. We can only find price estimates from jewelers, resale websites, and diamond sellers, and their estimates are different.
|
Source type |
Lab-created ring |
Natural ring |
|
Jeweler’s resale reference |
About 5 - 20% of retail price |
About 20 - 40% |
|
Engagement ring resale marketplace |
About 10 - 25% |
About 20 - 35% |
|
Online diamond retailers |
About 10 - 40%, depending on the retailer, and sometimes close to zero |
About 20 - 60% |
You use these numbers as rough estimates, not exact sale prices. Prices vary depending on who is buying. A jeweler usually offers less because they want to make a profit, while a private buyer may pay more. The ring’s diamond quality, certificates, and design also affect its value. Prices can also differ because many websites sharing these estimates are also trying to sell diamonds.
Are lab-grown diamond prices still falling?
Lab-grown diamonds have quickly moved from a niche product to a mainstream choice. According to the 2026 Real Weddings Study, covered by jewelry trade publication JCK, 61% of engagement ring purchases reported by surveyed U.S. couples married in 2025 featured a lab-grown centre stone.
As more people started buying lab-grown diamonds, their prices dropped. According to Tenoris retail data, the price of a one-carat lab-grown diamond fell by about 74% between 2020 and 2024. Prices continued to fall after that. De Beers' 2026 report says wholesale prices have dropped by 93% since 2020. Although these figures look at different types of prices, they both show that lab-grown diamonds have become much cheaper.
As lab-grown diamonds became cheaper, buyers started choosing bigger stones. According to BriteCo's research, the average centre stone in lab-grown engagement rings grew from 1.09 carats in 2019 to 2.16 carats in 2025. This means buyers can now get a much bigger diamond without spending as much as they would have a few years ago.
Buyers have also been using the lower prices to purchase larger stones. BriteCo's jewelry market research shows that the median lab-grown engagement ring centre stone grew from 1.09 carats in 2019 to 2.16 carats in 2025, based on its appraisal data. In other words, buyers can now afford much larger diamonds without spending as much as they would have a few years ago.
However, lab-grown diamond prices may be starting to stabilise. According to diamond analyst Edahn Golan's Q3 2026 report, wholesale prices for round lab-grown diamonds (1 - 3 carats) rose by about 2% between the second and third quarters of 2026. However, prices were still 9% lower than the same period in 2025.
This means prices are still falling overall, just not as quickly as before. De Beers also expects prices to remain low because more lab-grown diamonds are being produced and competition is increasing. So, prices are unlikely to return to the high levels seen in 2020 anytime soon.
Natural diamond prices have also been falling, especially for smaller and less expensive diamonds. According to De Beers' October 2026 report, lab-grown diamonds are making it harder for sellers to sell lower-priced natural diamonds. De Beers also reported that the average price it received for rough diamonds fell by 37% in 2026 so far. This shows that lab-grown diamonds are affecting the natural diamond market too, not just the resale value of lab-grown rings.
Where can you actually sell a lab-created ring?
|
Where |
What to expect |
Trade-off |
|
The jeweler you bought a ring from |
Buyback or trade-in credit |
Credit is often spendable only in their store |
|
An independent jeweler |
May offer a wholesale-level price |
Depends on whether they sell lab-created stones |
|
Professional diamond buyers |
Many buy natural stones only |
A quick answer, but often a no |
|
Consignment |
A jeweler sells it for you and keeps a commission |
Higher potential price, slower sale |
|
Online resale marketplaces |
A wider audience, and you help set the price |
Takes longer, and the price has to be realistic |
|
Pawn shops |
Fast cash |
Typically the lowest offers |
|
Scrap value |
The gold or platinum in the setting, sold by weight |
The stone adds little or nothing |
How to read a buyback or trade-in policy
Some jewellery stores offer buyback or trade-in deals, but the amount you actually get may be less than you expect. When a store promises to pay a certain percentage of the diamond's "market value," it usually means the price of a similar diamond today, not what you originally paid. Since lab-grown diamond prices have fallen, this can mean getting much less money back.
Before agreeing to a buyback or trade-in deal, ask these questions and get the answers in writing:
-
Will you receive cash or store credit?
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Is the amount based on what you originally paid or the diamond's current value?
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Does the offer have an expiry date?
-
Do you need the original certificate, receipt, or paperwork?
-
Does the ring need to be in perfect condition?
-
Do you have to spend the credit on a more expensive ring?
Store credit is different from getting your money back. Since lab-grown diamonds are cheaper now, your credit may be worth much less than what you originally spent. However, it may help you buy a bigger or better diamond. So, trade-in deals can be useful when upgrading your ring, but they are not always a good way to get your money back.
If you decide to sell
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Gather the grading report, receipt, and any original box or paperwork.
-
Make sure the ring is yours to sell (see the special situations below).
-
Ask at least three buyers for written offers, including the jeweler you bought from.
-
Compare cash offers directly. For credit offers, compare what the credit would actually buy.
-
Don’t wait if you know you’ll sell. Offers tend to be better soon after purchase, before newer, cheaper stones make yours less competitive.
What affects a lab-created ring’s resale value
|
Factor |
Why it matters |
What to check |
|
Stone quality and size |
Buyers price on 4Cs. Larger, well-cut, higher-grade stones tend to hold up comparatively better. |
Look closely at the cut grade, since it drives how the stone looks in light |
|
Grading report |
An independent report from a lab such as IGI or GIA gives a buyer verified details instead of a seller’s word |
Buy stones with a report and keep it |
|
Setting and metal |
Precious metal has value by weight and purity. With cheaper stones, the setting can be a larger share of the ring’s price |
Look for a karat stamp (14K gold is 58.3% pure gold) and a solid, well-made setting |
|
Paperwork and condition |
A receipt, report, and original box make a ring easier to verify and sell. |
Keep everything together and have prongs checked periodically |
|
Time |
Newer, cheaper stones make older ones less competitive |
Sell sooner if selling is likely |
However, these checks won't increase your ring's resale value, but they can help protect your money and make sure you get a good deal. They apply no matter where you shop, including when browsing our collection of lab-grown diamond engagement rings.
Retail price, appraisal, replacement value, resale: what do they mean?
A ring can have four different values. It is important to understand the difference between these values so you know what your ring is worth.
-
Retail price: The amount you originally paid for the ring.
-
Appraisal value: For insurance, it usually estimates how much it would cost to replace your ring with a similar new one.
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Replacement value: How much it would cost to buy a similar ring today.
-
Resale value: How much someone is willing to pay you for your ring.
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