Schematic of a belt press Inside the HPHT method, you'll find three primary press styles applied to provide the force and temperature necessary to generate artificial diamond: the belt push, the cubic press along with the break up-sphere (BARS) press. Diamond seeds are positioned at The underside of the push. https://tysonyhqxe.pages10.com/the-best-side-of-lab-grown-diamond-enegagment-ring-63020137