Grown, not mined.The same diamond, a better path.
A lab grown diamond is a real diamond — pure crystalline carbon, identical to a mined one in every physical and chemical way. The only difference is how it begins. Here's exactly how a diamond is grown above ground, in weeks rather than billions of years.
A diamond is just carbon, crystallised.
Deep in the earth, diamonds form when carbon is held under enormous heat and pressure for a very long time. A lab grown diamond is made by recreating those exact conditions above ground — giving carbon atoms a diamond "seed" to build on, then letting a crystal grow, atom by atom.
The result is not an imitation. It is a diamond: the same element, the same crystal structure, the same optical fire and the same 10-on-Mohs hardness as a stone pulled from a mine. What changes is only the origin — a controlled laboratory instead of the earth's mantle, and weeks instead of billions of years.
"Nature makes a diamond with time and pressure. A lab makes the same diamond with technology — the carbon doesn't know the difference."
There are two established ways to do it, and every lab grown diamond you'll see is made by one of them.
What actually differs.
Same chemical composition, crystal structure, brilliance and hardness. To the eye — and to most instruments — a lab grown and mined diamond are the same.
A mined diamond took one to three billion years to form. A grown one takes weeks to months — the same process, vastly accelerated.
Grown in a traceable, controlled facility rather than mined from the earth — which is where the ethical and environmental case begins.
Both are graded on the same 4Cs by the same laboratories. A lab grown report simply also notes that the stone was grown, and how.
Two ways to grow a diamond.
Both start with a diamond seed and end with a real diamond crystal. They differ in how the carbon is delivered to that seed — one with heat and pressure, the other with gas and plasma.
HPHT recreates the earth's mantle directly. A diamond seed and a carbon source are placed in a press and squeezed under enormous pressure at extreme heat — roughly 1,300–1,600°C and pressures over 50,000 times the atmosphere. The carbon dissolves and crystallises onto the seed, growing a diamond outward in every direction.
- 1Seed + carbon source (graphite) placed in a press with a metal flux.
- 2Immense pressure and heat melt the carbon around the seed.
- 3Carbon crystallises onto the seed, growing a rough diamond.
CVD grows a diamond from gas. A thin diamond seed is placed in a vacuum chamber filled with a carbon-rich gas such as methane. Energy — usually microwaves — heats the gas into a glowing plasma, breaking it into carbon atoms that settle onto the seed and build the crystal upward, layer by layer, like frost forming on glass.
- 1A flat diamond seed sits in a sealed vacuum chamber.
- 2Carbon-rich gas is energised into a plasma of carbon atoms.
- 3Carbon settles onto the seed, growing the diamond layer by layer.
From a speck of carbon to a finished stone.
Whichever method grows the crystal, every diamond travels the same journey from seed to certified, polished gem.
A tiny slice of diamond becomes the foundation the new crystal grows on.
In an HPHT press or a CVD chamber, carbon crystallises onto the seed over weeks.
The result is a rough diamond — pure carbon, ready to be shaped.
Master cutters facet the rough into its final shape, exactly as with a mined stone.
An independent lab grades the 4Cs and laser-inscribes the stone for traceability.
The two methods, side by side.
Both grow real diamonds of the highest quality. The differences are in the process, not the result on your finger.
| HPHT | CVD | |
|---|---|---|
| How it grows | Carbon crystallises around a seed under pressure and heat | Carbon settles onto a seed from gas, layer by layer |
| Conditions | Very high pressure, ~1,300–1,600°C | Low pressure, carbon-rich plasma, ~800–1,200°C |
| Grows as | A crystal expanding in all directions | A tabular crystal building upward in layers |
| Often used for | Efficient growth; certain colours | High clarity and fine control over quality |
| The result | A real diamond, graded on the 4Cs | A real diamond, graded on the 4Cs |
Yes — it is a real diamond.
This is the question everyone asks, so let's be direct. A lab grown diamond is not a simulant like cubic zirconia or moissanite — materials that only look like diamond. It is diamond: the identical crystal of carbon, with identical properties.
The only honest distinctions are origin and time. That's why leading laboratories grade lab grown diamonds on the very same scale as mined ones — and why we state the growth method openly on every certificate.
How it's made, answered.
The questions we hear most about how lab grown diamonds are created. If yours isn't here, just ask.
Chat on WhatsAppNow you know how it's made — find your diamond.
Every diamond we sell is grown by one of these methods, independently certified, and set in BIS hallmarked gold. Browse the collection, or read the honest case for choosing lab grown.