How Cultured Diamonds Are Grown

Learn about the 4C's

How Cultured Diamonds Are Grown

Learn about the 4C's

Laboratory diamonds are grown ethically in controlled conditions by one of two methods. Chemical Vapour Deposition (CVD) or High Pressure High Temperature (HPHT).

High Pressure High Temperature - HPHT

The HPHT growth process replicates the natural conditions under which a diamond forms. A carbon source, metal catalyst and diamond seed are placed in a capsule. With extreme pressure and heat, the catalyst and carbon crystallise on the diamond seed. The result is a rough HPHT laboratory grown diamond. The rough laboratory diamond is then expertly cut by gem cutters and graded.

Chemical Vapour Deposition - CVD

The CVD growth process takes place in a vacuum chamber. This method involves heating hydrocarbon gas into plasma, releasing carbon atoms which rain down on a substrate of diamond seed, growing the diamond upward in vertical layers.The rough laboratory diamond is then expertly cut by gem cutters and graded.

Cultured diamonds are conflict free and grown in ethical laboratory conditions. They require no mining, caving or dredging which severely impacts our environment and ecosystems.

Cultured diamonds are conflict free and grown in ethical laboratory conditions. They require no mining, caving or dredging which severely impacts our environment and ecosystems.