What's cubic zirconium

Cubic Zirconium can replace all the others faked diamond grinding raw materials, because its physical property super close to diamond. First, its refractive index is 2.17; dispersion is 0.06; that is very similar with diamond, and also same with diamond both belong to homogeneity. The hardness of zirconium can reach as high as 8.5, so that after refining it can be embedded on jewelries wear a long time without loosing its lust. It also can be deep processed into product with excellent transparency and completely colorless. Then grind it into gemstone, you will be hard to distinguish it from diamond visually. It’s said that in a few years after its production, some professional specialist in the industry were cheated by it too.
Surely, cubic zirconium and diamond are still different in many aspects. First, on hardness nothing can compare with diamond, cubic zirconium is not an exception. Second, the specific gravity of cubic zirconium is 5.6-6, this data is as 1.6-1.7 times as diamond can reach.
Under UV shortwave cubic zirconium typically fluoresces a yellow, greenish yellow or “beige”. Under UV long wave the effect is much weakened, sometimes a whitish glow can be seen.
In the past decade, the use and consumption of synthetic stone have grown. Much of the growth is direct result of the recognition of these gemstones for their own merits, not just as in inexpensive substitutes for natural gemstones. Nowadays, Cubic zirconium also plays a role in jewelry industry.