Learn Growing methods
Two paths to the same diamond.
CVD and HPHT are the two ways a laboratory grows diamond. Different physics — a plasma or a press — and an identical destination: carbon in a cubic crystal. A diamond, by every measure a gemologist has.
One grew in plasma, one in a press. No eye — trained or otherwise — can tell.
Tap a path to watch the journey.
CVD — Chemical vapor deposition
A wafer-thin diamond seed sits in a vacuum chamber filled with carbon-rich gas. Microwaves ignite the gas into a plasma, and freed carbon atoms settle onto the seed one atomic layer at a time. A one-carat rough takes roughly three to four weeks.
The verdict
Both are diamonds. Full stop.
Same carbon, same crystal, same fire — certified by the same independent labs, to the same standards as mined stones. VARNI grows primarily CVD, chosen for its type IIa purity, and cuts every stone to ideal proportions.