... to higher grade: RVD, CSD, MBD. Higher grade synthetic diamond grits has better crystal shape, better diaphaneity, stronger ... lower impurity, higher compact strength and thermal stability. Synthetic diamond grit sizes range cover 2.2mm, 2.0mm, ... , ceramics, optical glass, gems and electronic parts. Diamond micron powder sizes cover 0-0.25, 0-0 ... -54, 40-60, 50-70, 54-80 Synthetic diamond powder