Cubic Zirconia is always regard as a best diamond substitute. But there comes another material named moissanite (Silicon Carbide) which is more similar to diamond. Moissanite can be strongly birefringent with 9.25 hardness. So it is the artificial diamond which is much closer to natural diamond than any other diamond substitute. The uncommon and attractive brilliance will become the eye-catching focus. The superior quality moissanite and the advanced and professional workmanship guarantee all of our gemstones are super ones