1 carat E/VS1 EX VG lab grown diamond Round

1 carat E/VS1 EX VG lab grown diamond Round

  The physical structure of a natural diamond is ortho-octahedral, whereas a man-made diamond is not, resulting in a phosphorescent phenomenon. These cosmetic flaws were a fatal drawback for jewelers, but irrelevant for industrial equipment, so the earliest man-made diamonds were mainly used for industrial purposes.

  In the 1990s, chemical vapor deposition (CVD) was used to synthesize diamond films, which were deposited on solid-phase substrates to form polycrystalline films of diamond for industrial use. 2003 saw the synthesis of gem-quality single crystals by Apollo in the USA, and commercial production began.