How Are Lab Grown Diamonds Made? In the lab, you can grow diamonds one of two ways: High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD). Both processes start with what’s known as a “diamond seed,” a single crystal diamond in a slice about as thick as a human hair. Diamonds are grown over the course of several weeks through both processes. . . Read more: https://www.cvddiamondsmanufacturer.com/what-are-cvd-diamond-made-of/

















