The CVD (Chemical Vapor Deposition) method

The Chemical Vapor Deposition (CVD) method is one of the main processes used to make diamonds in a laboratory. This method utilizes chemical reactions whereby a small germ crystal is placed into a sealed chamber and a combination of gases rich in carbon and hydrogen is then heated at high temperatures and broken down into their individual atomic components.

Under intense heat and pressure, the carbon atoms then attach to the surface of the abovementioned germ crystal, forming a layer of pure crystalline diamond. This process is repeated several times, layer by layer, until a full diamond is formed.