Imperfections in the crystal lattice of diamond are common. Such defects may be the result of lattice irregularities or extrinsic substitutional or interstitial impurities, introduced during or after
Synthetic diamonds of various colors grown by the high-pressure and high-temperature technique, the diamond size is ~2 mm.
Schematic of the C center
Schematic of the A center
Schematic of the B center
Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is general
An octahedral diamond crystal in matrix
Diamonds in an angle grinder blade
Pure diamonds, before and after irradiation and annealing. Clockwise from left bottom: 1) initial (2 mm × 2 mm); 2–4) irradiated by different doses of 2 MeV electrons; 5–6) irradiated by different doses and annealed at 800 °C.