If you are asking whether a lab-grown diamond holds its value, you deserve a plain answer rather than a sales pitch. Here it is: as a financial asset, no. A lab-grown diamond is bought to be worn, not to be sold on, and this article explains why that is the honest position and what value actually means for a piece you keep.
Do lab-grown diamonds hold their value?
No. Lab-grown diamonds have a low resale value, and you should not expect to recover a meaningful part of the purchase price if you sell one later. They are not an investment, and no honest jeweller should present them as one.
The reason is structural rather than a matter of quality. A lab-grown diamond is produced in a controlled process that can be repeated at scale, so there is no natural limit on supply. Prices have fallen as production has grown, and the secondary market for lab-grown stones remains small.
That said, this describes the diamond as an asset. Almost nobody buys an engagement ring in order to sell it, and judged as a piece you wear for decades, the picture is very different. We come to that below.
Why have lab-grown diamond prices fallen?
Prices have fallen because lab-grown diamonds are manufactured, and manufacturing becomes cheaper as it scales. More producers, better equipment and larger facilities have increased supply, and competition between growers has passed those savings on to buyers.
The two production methods, high-pressure high-temperature (HPHT) and chemical vapour deposition (CVD), have both matured. Growers can now produce larger stones with higher colour and clarity grades far more reliably than when the technology was new.
For a buyer this cuts both ways. The stone you purchase today costs much less than an equivalent stone did in the early years of the technology, but the same forces mean it will not gain value in your hands. You can read how the stones are grown and graded in our guide to lab-grown diamonds.
Do mined diamonds hold their value any better?
Not as much as most people assume. A mined diamond bought at retail also loses a significant portion of its value when resold, because the retail price includes margins, marketing, operating costs and other expenses that a second-hand buyer does not pay for.
The main difference is the secondary market. Mined diamonds have a more established resale and trading market, with dealers, auction houses and a long history of pricing. This generally gives them stronger resale demand and a higher potential resale value than lab-grown diamonds.
Lab-grown diamonds have a newer and less established secondary market, while falling prices for new lab-grown diamonds can put additional pressure on resale values.
Neither type of diamond should be viewed as an investment or a reliable way to store money. Rare, large or exceptionally graded mined diamonds can behave differently, but they represent a very different market from the diamonds most people buy for an engagement ring.
What does value mean for a diamond you wear every day?
For a piece of jewellery, value is what you receive for what you pay, and how well it serves you over the years. On that measure a lab-grown diamond offers more quality per krona than a mined stone of the same grade, and it lasts just as long.
Quality per krona. For the same budget you can choose a larger stone, a higher colour, a cleaner clarity, or a combination of all three. A 1 carat lab-grown diamond sits within reach of budgets that would otherwise stretch only to a much smaller mined stone.
Durability. A lab-grown diamond is a diamond: crystallised carbon with the same hardness, the same brilliance and the same resistance to scratching and wear as a mined stone. It will not cloud, fade or soften with age.
Emotional and practical value. An engagement ring is worn daily for a lifetime, and its worth lies in what it marks rather than what it would fetch. Knowing that the stone was chosen with care, and that its origin is traceable, is part of that.
The certificate. An independent grading report from IGI or GIA records exactly what you own: weight, colour, clarity, cut and measurements, together with a laser inscription on the girdle that matches the report number. The document does not make the stone worth more, but it means you can never be misled about what you have.
| Consideration | Lab-grown diamond | Mined diamond |
|---|---|---|
| Material | Crystallised carbon; chemically, physically and optically a diamond | Crystallised carbon; chemically, physically and optically a diamond |
| Origin | Grown in a controlled facility by HPHT or CVD; traceable | Extracted from the ground; origin is often difficult to trace |
| Certification | Graded by IGI or GIA; the report states that the stone is lab-grown | Graded by the same laboratories; the report states that the stone is natural |
| Price for the same 4Cs | Considerably lower | Considerably higher |
| Supply | Scalable; grows with production capacity | Finite; constrained by mining output |
| Resale outlook | Low; thin secondary market | Well below retail for most stones; established secondary market |
| Sensible reason to buy | A larger or better stone for the budget; ethics and traceability | Rarity and the heirloom narrative |
What protects your purchase in practice?
Since resale is not the safeguard, protection has to come from how the stone is sold. At VAALBERG that means an independent certificate, a physical inspection in Sweden and terms that let you change your mind. These are the things that protect the money you spend.
- Independent certification. Every stone we sell carries an IGI or GIA report. No stone is graded by us, by the grower or by anyone with a commercial interest in the result.
- Inspection in Sweden. Before shipping, our team checks each diamond against its certificate and photographs it, so the stone that arrives is the stone described on the report.
- Honest, all-inclusive pricing. The price you see includes VAT, the certificate and insured shipping, with no traditional industry markup added on top. Loose stones start from about 1,500 SEK.
- 30-day returns. If the piece is not right, you can return it within 30 days for a full refund.
- Free resizing and lifetime care. A ring that fits and is looked after keeps its stone secure and its setting sound for decades.
- A named expert. You deal with one person who knows your order, never a call centre.
Each product page also shows the full IGI or GIA report and a "See it true to size" visualiser, so you can judge the stone on your own hand before you commit.
When is a lab-grown diamond the rational choice?
A lab-grown diamond is the rational choice when you want the best stone your budget allows and you are clear with yourself that you are buying jewellery, not an asset. It is also the obvious choice if the origin of the stone matters to you.
In practice that describes most engagement ring buyers. If a 1 carat mined stone is out of reach, a lab-grown stone of the same size and a higher grade often is not. You can browse by size, shape and grade in our diamond search, or design the whole ring in the ring configurator.
Our quality tiers keep the trade-offs simple. Classic (G–H colour, SI clarity) gives a bright, clean stone at the most accessible price, Reserve (F, VS) steps up in both, and Signature (D–E, VVS) is for those who want the top of the scale.
Some people will still prefer a mined diamond, and that is a legitimate choice. If rarity, geological age or the idea of an heirloom passed down with its story is central to what the ring means to you, a mined stone carries that narrative in a way a grown one does not.
What we would ask is only that the choice is made on those terms. Neither stone should be bought on the promise of holding value, because neither does. Our engagement rings are designed around certified lab-grown stones for exactly that reason.
Frequently asked questions
Are lab-grown diamonds worth it?
As jewellery, yes. You receive a real diamond, independently certified, at a price that allows a larger or better-graded stone than the same budget would buy in a mined diamond. As an investment, no, and the same is true of most mined diamonds bought at retail.
What is the resale value of a lab-grown diamond?
Low. There is a limited secondary market for lab-grown stones, and a buyer can always purchase a new one at a falling price, so second-hand offers tend to be a small fraction of the original retail price. Buy a lab-grown diamond because you want to wear it, not because you plan to sell it.
Will my lab-grown diamond lose its sparkle over time?
No. A lab-grown diamond has the same hardness and optical properties as a mined diamond, and it does not cloud, yellow or fade. With ordinary care and occasional cleaning it will look the same decades from now as it does today.
Can a jeweller tell a lab-grown diamond from a mined one?
Not by eye, and not with a standard loupe. Distinguishing them requires specialised laboratory equipment, which is why an IGI or GIA report matters: it states clearly whether the stone is lab-grown, and the inscription on the girdle ties the stone to its report.
Does a certificate increase the value of a lab-grown diamond?
It does not raise the resale price, but it protects the purchase price. The report confirms that the grades you paid for are the grades you received, and the inspection in Sweden confirms that the stone matches the report. Without it you would be relying on the seller's word alone.
