Guides
Both are real diamonds. Here is how they differ, so you can choose what feels right for you.
01
Yes. A lab-grown diamond is a real diamond, with the same crystal structure and the same physical, chemical and optical properties as one mined from the earth. It is not a simulant such as cubic zirconia or moissanite.
02
Natural diamonds formed deep underground over billions of years. Lab-grown diamonds are created by recreating those conditions above ground, either with intense heat and pressure or by building the crystal layer by layer from carbon. The result is a diamond in weeks rather than aeons.
03
| Natural | Lab-grown | |
|---|---|---|
| Material | Diamond (carbon) | Diamond (carbon) |
| Look & sparkle | Identical when graded the same | Identical when graded the same |
| Hardness | 10 on the Mohs scale | 10 on the Mohs scale |
| Origin | Formed in the earth over billions of years | Grown above ground in weeks |
| Price | Higher | Considerably lower for the same size and grade |
| Rarity | Finite and rare | Can be produced to order |
| Certification | Graded by independent labs | Graded by independent labs, origin stated |
04
Not by eye. Even experienced jewellers need specialist equipment to tell a lab-grown diamond from a natural one. A certificate from an independent laboratory states the origin of every stone, so you always know what you are buying.
05
Lab-grown diamonds cost considerably less than natural diamonds of the same size and grade, so the same budget buys a larger or higher-grade stone.
Natural diamonds are finite, and for many people their rarity and story are part of the meaning. Lab-grown diamonds have far less resale value today. If long-term value matters to you, natural is usually the choice.
06
There is no wrong answer. We offer both, and the best way to decide is to see them side by side.
Your private appointment
See natural and lab-grown diamonds together in the showroom, and choose with your own eyes.
Or call us on +44 20 7430 9691
