Cushion material can be qualified in IF level (InternallyFlawless) without defect inspection

Emerald silicon carbide color, clarity, cut conforms to the standard

Heart carbon - silicon binding molecules, belong to super hard material, the hardness is qualified.

The hardness of Pear is in accordance with the standard, which is higher than that of other gemstones, and the characteristics of fire color and refractive index are qualified.

Princess synthetic carbon silica, dispersion, refractive index, and diamond shiny the same as diamonds

Round internal structure, numeric, appearance qualification