Schematic of the belt push During the HPHT technique, you can find 3 key push styles employed to provide the strain and temperature necessary to produce synthetic diamond: the belt press, the cubic press and also the split-sphere (BARS) push. Diamond seeds are put at The underside with the push. https://lab-grown-diamonds-are-th80123.blogolize.com/everything-about-lab-grown-diamond-earring-66642954