Lab Grown Colored Diamonds: How Are They Made?
To create diamonds in a laboratory, experts start with a "seed," which is a very small diamond gemstone. They then employ one of two different processes: High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD). In the CVD process, the seed is placed in a plasma reactor chamber where a mixture of carbon-based gases is introduced at low pressure. Microwaves are utilized to heat these gases, creating plasma. As the temperature increases to thousands of degrees, gas molecules start to break up, allowing carbon atoms to bond to the seed, layer by layer. In the HPHT process, the seed is positioned in a mechanical press, subjecting it to intense temperatures and pressure along with pre-existing carbon. The seed serves as a template for the carbon lattice, shaping the lab-grown diamond . Within a few days, the gemstone undergoes growth, layer by layer, until it reaches the desired carat weight. How Do Lab Grown Diamonds Get Their Color? Lab dia...