Silicon carbide gemstones

The use of the depositing high hardness and artificial jewel is relatively low impurity concentration of single crystal according semi-transparent comprises silicon carbide during the sublimation growing furnace and. During cutting the concentrated gem, and a thick gem the gem finished product. A wherein the selective doped can be to obtain the wide of colour tone and crystal of the monocrystal growth process. The impure in the system in which does not need a and crystal said of can be a colorless gem.