Synthetic Rough Diamond for stone jewelry

There are four quality levels of Synthetic Rough Diamond for stone jewelry

(1)  Superior quality --- non seed crystal, a perfect alternative one of natural diamond.

(2)  Grade A --- Mixing white rough diamond with VS, VVS clarity and D, E, F, G, H, I color grade, size range from 1mm to 2mm. mainly are 1.5mm and 1.8mm

(3)  Grade B--- Medium quality for jewellery or industrial applications.

(4)  Grade C--- economy quality for industrial applications.