Lab-grown diamonds are one of the most talked-about developments in fine jewellery. For anyone buying a diamond engagement ring today, the question of natural versus lab-grown is almost inevitable — and it deserves a straight answer.
At JQ Diamonds, we offer both. Our view is that neither is objectively better than the other. The right choice depends entirely on your priorities — and understanding the real differences will help you decide.
What Is a Lab-Grown Diamond?
A lab-grown diamond is a real diamond. It has the same chemical composition, the same crystal structure, and the same physical properties as a diamond formed naturally in the earth. Both are pure carbon arranged in a cubic crystal lattice. Both register as diamond on any gemological testing equipment. Both are graded by the same laboratories using the same 4Cs.
The only difference is origin. Natural diamonds formed over billions of years under intense heat and pressure deep within the earth's mantle. Lab-grown diamonds are created in a controlled environment using one of two processes — High Pressure High Temperature (HPHT) or Chemical Vapour Deposition (CVD) — that replicate those conditions in a matter of weeks.
Are Lab-Grown Diamonds Real Diamonds?
Yes — categorically. A lab-grown diamond is not a simulant like cubic zirconia or moissanite. Those are different materials that merely resemble diamonds. A lab-grown diamond is chemically and physically identical to a mined diamond. The only way to distinguish one from the other is with specialist equipment that detects trace elements or growth patterns.
GIA, the world's most respected diamond grading authority, grades lab-grown diamonds using the same 4Cs scale as natural diamonds.
The Key Differences
Understanding the real differences between natural and lab-grown diamonds comes down to four things: price, rarity, resale value, and personal meaning.
Price
Lab-grown diamonds are significantly less expensive than natural diamonds of equivalent grades — typically 50–80% lower. This means your budget goes considerably further. A lab-grown diamond that would cost £3,000 in natural form might be available for £800–£1,200 as a lab-grown stone.
Rarity
Natural diamonds are finite. Each one took billions of years to form and is genuinely one of a kind. Lab-grown diamonds can be produced on demand and in increasing quantities, which is why their prices have fallen steadily.
Resale Value
Natural diamonds retain value over time in line with the wider diamond market. Lab-grown diamonds currently have limited resale value — prices have dropped significantly as production has scaled. If long-term resale value matters to you, natural is the more sensible choice.
Personal Meaning
This is ultimately the most important factor. Some people feel strongly that a diamond formed in the earth over billions of years carries a significance that a lab-grown stone cannot replicate. Others feel that the origin is irrelevant — what matters is what it represents. Neither view is wrong.
Natural Diamond
Formed in the Earth
Created over billions of years under intense pressure deep within the earth's mantle. Finite, rare, and geologically unique.
- Identical chemical composition to lab-grown
- Retains resale value over time
- GIA or IGI certified
- Each stone genuinely one of a kind
Lab-Grown Diamond
Created in a Laboratory
Grown in a controlled environment replicating natural conditions. Physically and chemically identical to a natural diamond.
- 50–80% less expensive for equivalent grades
- Budget goes further on cut, colour, clarity
- GIA or IGI certified
- Ideal if origin is not a priority
What About Ethical Sourcing?
Lab-grown diamonds are often marketed as the more ethical choice, and there is some truth to this — they do not involve mining, which can have environmental and social implications depending on the source.
However, the picture for natural diamonds is more nuanced than it is sometimes presented. The Kimberley Process has significantly reduced the trade in conflict diamonds. Many natural diamond producing regions — particularly in Botswana, Canada, and Namibia — have strong environmental and labour standards.
Our position is that both options can be sourced responsibly. We are transparent about the origin of every diamond we sell and are happy to discuss the sourcing of any specific stone with you in detail.
Which Should You Choose?
If budget is a priority and you want the largest, highest-quality diamond your money can buy, lab-grown is worth serious consideration. The quality is real, the appearance is identical, and the saving is significant.
If the geological origin of the diamond matters to you — if you want something formed in the earth over billions of years — then natural is the right choice. The premium you pay reflects genuine rarity, and for many people that meaning is worth it.
If you are unsure, the best thing to do is come and see both side by side. Our specialists can show you stones of equivalent grade in both origins and let you decide what feels right. There is no pressure either way.
We offer both natural and lab-grown diamonds because we believe the right choice is yours to make — not ours. Our job is to make sure you have everything you need to make it with confidence.
JQ Diamonds, Birmingham's Jewellery Quarter
See Natural and Lab-Grown Side by Side
Book an appointment and our specialists will walk you through both options in person.
Frequently Asked Questions
Will anyone be able to tell the difference?
Not without specialist equipment. Lab-grown and natural diamonds are visually identical. Even trained gemologists cannot distinguish one from the other by eye.
Do lab-grown diamonds come with certificates?
Yes. All lab-grown diamonds sold at JQ Diamonds come with a full grading certificate from GIA or IGI, confirming the 4C grades and identifying the stone as lab-grown.
Will a lab-grown diamond last as long?
Yes. Lab-grown diamonds are just as hard and durable as natural diamonds — both score 10 on the Mohs hardness scale, the highest possible rating.
Can I insure a lab-grown diamond engagement ring?
Yes — lab-grown diamond rings can be insured in the same way as natural diamond rings. We recommend getting a professional valuation, which we can provide.
Are lab-grown diamonds graded the same way?
Yes. GIA and IGI grade lab-grown diamonds using exactly the same 4Cs methodology as natural diamonds. The certificate simply states the origin as laboratory-grown.
