Lab Grown Solitaire vs Natural Solitaire: Which Should You Buy for a Ring?
Once you have settled on a solitaire, shape decided, setting decided, one question still sits underneath the whole purchase: lab grown or natural. It is not a small decision. It affects what you pay, what you can prove about the stone you bought, how it was sourced, and, if you listen to certain corners of the diamond industry, what the stone is supposedly "worth" years from now. This guide walks through the real, verifiable differences, point by point, and explains why we build every Lucira solitaire on a lab grown diamond rather than a mined one.
Lab grown vs natural, at a glance
| Lab grown diamond | Natural diamond | |
|---|---|---|
| Origin | Grown in a controlled facility using HPHT or CVD | Formed underground over millions to billions of years, then mined |
| Chemical and physical properties | Identical to natural | Identical to lab grown |
| Visible difference | None to the naked eye | None to the naked eye |
| Price for the same specification | Meaningfully lower | Meaningfully higher |
| Clarity and color availability | High grades more consistently available | High grades exist but are rarer and cost more |
| GIA grading | Premium or Standard quality classification | Full 4Cs grade (cut, color, clarity, carat) |
| IGI grading | Full 4Cs grade, same as natural | Full 4Cs grade |
| Sourcing | No mining, controlled production | Mining, governed by Kimberley Process and supplier standards |
| Durability | 10 on the Mohs scale | 10 on the Mohs scale |
| Resale market | Newer, less established, prices have fallen as supply scaled | Older, more established, though never a guaranteed return |
What "lab grown" actually means
According to GIA, a laboratory-grown diamond has essentially the same chemical composition, crystal structure, and optical and physical properties as a natural diamond. The difference is entirely in how the crystal formed. A natural diamond crystallised under heat and pressure deep in the earth over a period GIA measures in the millions to billions of years. A lab grown diamond is produced in a matter of weeks using one of two methods: HPHT (High Pressure, High Temperature), which recreates the pressure and heat conditions of natural formation inside a controlled press, or CVD (Chemical Vapor Deposition), which builds a diamond layer by layer from carbon-rich gas in a near-vacuum chamber. Both methods produce a stone that is, atomically, a diamond, not an imitation and not a simulant like cubic zirconia or moissanite, which are chemically unrelated to diamond entirely.
The one difference that matters least: how they look
Here is the part most buyers overestimate. By eye, a well-cut lab grown diamond and a well-cut natural diamond of the same grade are indistinguishable. The brilliance, fire and scintillation you see in a solitaire come from the cut, not the origin. GIA itself notes that separating the two requires specialised laboratory instruments capable of detecting microscopic growth-history differences invisible to the naked eye, and a standard handheld diamond tester cannot tell them apart either, since those testers measure thermal conductivity, and lab grown and natural diamonds conduct heat identically. If your priority is how the ring actually looks on the hand, origin is not the variable that decides that, cut quality is, which is exactly why our own solitaire buying guide puts cut first in the 4Cs regardless of which origin you choose.
Price: why lab grown wins on value
This is where the decision becomes straightforward for most buyers. A lab grown diamond of a given carat weight, cut, colour and clarity costs meaningfully less than a natural diamond graded to the same specification. GIA describes the pricing gap simply as lab grown diamonds coming to market at "a reduced price point," and that gap has been a major driver of demand since colourless lab grown diamonds became commercially available in the mid-2010s. The reason is structural rather than a discount: a natural diamond's price reflects the cost and scarcity of mining a finite geological resource, while a lab grown diamond's price reflects a controlled, repeatable production process, so as production scales, cost keeps coming down. What that means practically is that the same budget buys you a larger stone, a higher clarity grade, or a better cut grade when you choose lab grown, three levers that all make a visibly better ring for the same money. If your budget is fixed and you want the best-looking solitaire that budget can buy, lab grown is the more efficient choice by a wide margin.
Clarity and colour: why lab grown stones often look cleaner
Because lab grown diamonds form in a controlled environment rather than an unpredictable geological one, the growth process introduces fewer of the natural inclusions that occur when a diamond forms underground alongside other minerals and stresses over millions of years. In practice, this means very high clarity and colour grades are more consistently available in lab grown diamonds at a given carat weight than in natural diamonds, where the same grades exist but are rarer and priced accordingly. This is not a claim that every lab grown stone is flawless, clarity still varies diamond to diamond, but it does mean a buyer chasing a specific high grade, say a colourless, eye-clean stone, generally has more accessible and affordable options in lab grown.
Certification: how each is graded and disclosed
A common concern is whether a lab grown diamond gets the same rigorous grading as a natural one. It does, though the exact format differs depending on which laboratory certifies it, and this is worth understanding before you buy. As of October 2025, GIA evaluates each laboratory-grown diamond it certifies and classifies it into one of two overall categories, Premium or Standard, based on a combined assessment of color, clarity, polish, symmetry and cut, rather than issuing the individual letter and number grades (like a D colour or a VS1 clarity) that GIA still uses for natural diamonds. IGI, the other major grading laboratory and the one most commonly seen on Lucira's own certificates, continues to grade lab grown diamonds on the full traditional 4Cs scale, the same individual color and clarity grades used for natural stones, which our guide on IGI versus GIA diamond certification covers in detail if you want to compare the two systems directly. Whichever laboratory certifies your stone, every lab grown diamond's girdle is laser-inscribed with its report number and an explicit statement identifying it as laboratory-grown, so the disclosure travels with the stone permanently, not just on paper. Our guide on how to read a lab grown diamond certificate walks through exactly what each section of that report means.
Sourcing and ethics
Natural diamond sourcing is governed by the Kimberley Process, an international certification scheme established in 2003 to prevent the trade of diamonds mined to fund armed conflict, and most major natural diamond suppliers today also follow additional voluntary sourcing standards on top of it. That said, mining itself, even when responsibly regulated, remains a resource-intensive process involving significant land disturbance and energy use. Lab grown diamonds remove the mining step from the equation entirely, since the stone is produced in a facility rather than extracted from the ground, which is why lab grown production is generally recognised as having a smaller environmental footprint. Our dedicated piece on whether lab grown diamonds are eco-friendly covers this comparison with the actual data behind the claim rather than a marketing line, since this is a topic worth more depth than a single paragraph here can give it.
Durability and daily wear
This one is simple: a lab grown diamond is just as hard as a natural diamond, because it is the same material with the same 10-on-the-Mohs-scale hardness. There is no durability trade-off for choosing lab grown. Whatever setting you choose, prong, bezel or halo, wears the diamond exactly the same way regardless of where the stone came from, so this decision can be made entirely independently of the setting decision covered in our prong versus bezel versus halo comparison. The one practical difference some buyers mention is psychological rather than physical: because a lab grown stone typically costs less for the same look, some people feel more comfortable wearing it daily for manual work, travel or sport, simply because replacing it would be a smaller financial setback, not because the stone itself wears any differently.
The honest case for natural
It would be dishonest to pretend natural diamonds have no case at all, so here it is, plainly. A natural diamond carries an actual geological age measured in the millions of years, which some buyers find meaningful in a way a manufactured stone cannot replicate, purely as a matter of personal or symbolic value rather than anything measurable in the stone itself. Natural diamonds are also long established in the resale and estate jewellery market, with generations of trading history behind them, and some buyers place weight on that established track record specifically for heirloom pieces intended to pass down through a family. We would note, though, that claims about natural diamonds reliably "appreciating in value," which you will see repeated on some industry sites backed by natural-diamond trade organisations, are not something either GIA or any neutral resale market data supports as a general rule for diamond jewellery bought at retail. Our own article on lab grown diamond resale value covers this in more depth, and the honest answer for either origin is that diamond jewellery is not a reliable financial investment, it is jewellery, bought to be worn and loved.
Why Lucira chooses lab grown
We build every Lucira solitaire on a certified lab grown diamond, and it comes down to the combination above: the same hardness, the same optical brilliance, more consistently available high clarity and colour grades, rigorous IGI certification with permanent disclosure, and a price that lets you choose a genuinely better stone for your budget rather than a smaller or lower-grade natural one. It also means every diamond in a Lucira ring was grown, not mined, which is a meaningfully smaller environmental footprint, a topic our dedicated eco-friendly piece covers with the actual data behind that claim.
How to decide: a short checklist
Choose lab grown if you want the largest, cleanest-looking stone your budget can buy, if you want a fully documented and disclosed certification you can verify yourself, and if a smaller environmental footprint matters to your decision. Lean toward looking at natural stones elsewhere if personal or symbolic meaning tied to geological age matters more to you than value, or if you are specifically building an heirloom piece where a natural diamond's established resale and trading history matters to you personally. Either way, do not buy an uncertified stone of either origin, and always confirm which laboratory issued the report and what its specific grading terms mean before you compare two rings on paper.
Frequently asked questions
Is a lab grown diamond a real diamond?
Yes. It has the same chemical composition, crystal structure and physical properties as a natural diamond, according to GIA. The only difference is that it was grown in a controlled laboratory setting rather than formed underground.
Can a jeweller tell the difference just by looking, or with a diamond tester?
No, not reliably either way. Distinguishing a lab grown diamond from a natural one requires specialised gemological instruments beyond a standard handheld diamond tester, since those testers measure thermal conductivity and both types of diamond conduct heat identically. This is exactly why GIA and IGI grade and certify both types separately and laser-inscribe lab grown stones as a permanent disclosure.
Do lab grown diamonds hold their value the same way natural diamonds do?
Neither type should be treated as a financial investment. Lab grown diamond prices have fallen as production has scaled, similar to how most manufactured luxury goods behave over time, while natural diamond resale value depends heavily on the individual stone and market conditions at the time of resale rather than any guaranteed appreciation.
Are lab grown diamonds graded the same way as natural diamonds?
It depends on the laboratory. IGI grades lab grown diamonds on the full traditional 4Cs scale, the same individual grades used for natural stones. GIA instead classifies lab grown diamonds it certifies as Premium or Standard based on a combined assessment of color, clarity, polish, symmetry and cut, a system it introduced in October 2025, rather than issuing individual letter and number grades as it does for natural diamonds.
Is natural diamond mining ethical?
Most major suppliers follow the Kimberley Process, an international scheme established in 2003 to prevent the trade of conflict diamonds, along with additional voluntary sourcing standards. Even under strict regulation, though, mining remains a resource-intensive process, which is one reason lab grown production is generally seen as having a smaller environmental footprint.
Will natural diamonds always cost more than lab grown diamonds of the same quality?
At present, yes, lab grown diamonds consistently come to market at a lower price point for a comparable grade, which is the main driver of their growing share of the engagement ring market.
Choosing your stone
Once you have decided on origin, the rest of the decision, shape, cut priority, setting and budget, is covered in full in our solitaire buying guide, or explore Lucira's certified lab grown solitaire collection to see the combination of size, clarity and setting your budget can actually buy.
