Reviewed by Yoona's in-house jewelry experts
Short answer: not in the resale sense, but neither do mined diamonds. Retail markup means almost no diamond, lab-grown or mined, resells for close to its purchase price. What lab-grown actually offers is a different kind of value: more diamond, more quality, and more certainty for your money.
Financial Value vs. Emotional Value
Quick answer: These are two different questions people conflate. Financial value asks what you could resell it for. Emotional and practical value asks what you got for what you paid. Lab-grown diamonds compete well on the second, not really on the first, and neither does mined.
When someone asks "do lab-grown diamonds hold value," they're usually really asking one of two different things: will it sell for close to what I paid, or did I get something worth having. Those have very different answers, and mixing them up is where most of the confusion comes from.
Why Resale Value Is Low for Nearly Every Diamond
Quick answer: Retail diamonds, lab-grown or mined, typically resell for a fraction of purchase price because retail pricing includes markup that a private buyer or wholesale market won't pay. This is not a lab-grown-specific problem.
The moment a diamond leaves a retail setting, it re-enters the market as a used stone competing against new wholesale inventory, and the secondary market values it accordingly, not against what you paid at retail. This is true of mined diamonds bought at a traditional jeweler just as much as lab-grown diamonds bought online. The rare exception is investment-grade natural diamonds, extremely large, extremely rare, extremely high grade stones with their own collector market, which represent a tiny fraction of diamonds actually sold for engagement rings.
Will Lab-Grown Diamond Prices Keep Falling?
Quick answer: Prices have fallen significantly as production scaled, and further gradual declines are plausible as the technology matures further. This affects future buyers more than people who already own one, since a purchased diamond's value to its owner isn't tied to what a new one costs today.
This is a real and fair concern people often don't ask directly: if lab-grown diamond production costs keep dropping, does that mean the diamond someone already bought is now "worth less"? In practical terms, no more than it always was, since resale value was never based on production cost to begin with, it's based on what a private buyer will pay for a used stone, which was already discounted from retail. A falling production cost mainly affects what a new diamond costs a new buyer, not what your existing one means or how it performs.
What Lab-Grown Actually Delivers for Your Money
Quick answer: More carat, more clarity, or better color for the same budget compared to an equivalent mined diamond, since lab-grown typically costs 60 to 85 percent less at the same grade.
Here's the trade you're actually making: instead of paying a scarcity premium for a mined origin, you're putting that same budget directly into the stone's visible qualities. A buyer who might afford a 0.90 carat, VS2, G-color mined diamond could often get a 1.50 carat, VS1, E-color lab-grown diamond for a comparable price, a meaningfully bigger, cleaner, whiter stone for the same spend.
Our Planned Diamond Upgrade Program
Quick answer: Yoona is developing a Diamond Upgrade Program that would let you put 100 percent of your original diamond's purchase price toward a new diamond of at least double the value. This program is not yet live, we're noting it here so you know it's coming, not implying it's available today.
This is the closest thing to a direct answer to "will my diamond hold value over time," structured as a forward path rather than a resale transaction. Once launched, the program would apply to the loose center diamond, not the setting, and would require the original stone and its grading report to remain in original condition. We'll update this article the moment it's active, in the meantime, don't let anyone tell you this program already exists elsewhere in the market without confirming the specific terms first.
Appraisal and Insurance Value
Quick answer: A certified lab-grown diamond is appraised and insured based on its actual replacement cost, the same process used for mined diamonds. Insurance value is not the same question as resale value.
Insurance and appraisal work off replacement value, what it would cost to replace the item today, not what a private buyer would pay for your used stone. A lab-grown diamond's certificate gives an appraiser everything needed to establish that replacement value accurately, exactly like a mined stone's certificate does.
Frequently Asked Questions
Do lab-grown diamonds lose value faster than mined diamonds?
Not meaningfully. Both categories see steep depreciation from retail to resale, driven mostly by retail markup rather than origin.
Is there a resale market for lab-grown diamonds?
Yes, a growing one, through resale platforms, consignment, and trade-in or upgrade programs, though it's smaller and less established than the decades-old mined diamond secondary market.
Should I buy a lab-grown diamond as an investment?
No diamond, lab-grown or mined, should be purchased primarily as a financial investment. Buy for the piece itself, the quality, and what it means to you.
Does carat size affect resale differently for lab-grown diamonds?
Larger, rarer carat weights tend to hold relative value slightly better across both categories, since bigger stones are less common at every grade. This effect is modest and applies to mined and lab-grown diamonds alike, it isn't unique to either.
How Yoona Approaches Value
We don't oversell resale potential, because doing so would be misleading regardless of origin. What we control is quality: every center stone meets the Yoona Eternal Diamond™ standard, D–F color, VVS1–VS1 clarity, Excellent to Very Good cut, IGI certified. That's the value we can actually guarantee, a stone that's genuinely worth what you paid for it the day you put it on, and every day after.
