Cubic Zirconia

Cubic zirconia (CZ) is a synthetic gemstone with no natural counterpart.  Made of zirconium dioxide it is generally optically flawless.  CZ is available in a wide selection of colors and shapes, making it ideal for use in jewelry.  CZ has a high refractive index making is one of the most brilliant materials available.  Cubic Zirconia is most well-known as a simulant for diamonds.

Material: Cubic Zirconia
Hardness (Mohs): 8.5
Refractive Index: 2.1-2.2
Density, g/cm3: 6.5-10
Dispersion: 0.06
Growth Method: Autocrucible / "Skull Melting"