Nanocrystal

Nanocrystal is a new synthetic material in Emerald Green. It is exceptionally stable when set in jewellery using all stone setting techniques.
Nanocrystal is a name for a group of new synthetic materials grown in amorphous substances, nanosized  crystals (about 10^-7 mm in dimensions) in particular, used in fine jewellery and fashion jewellery.

Green

  Characteristics: 
  Chemical Composition:  Al2O3, MgO, TiO2, SiO2
  Structure:                           glass-ceramics
  Hardness (ºMohs):          6,5-7
  Density:                              2,7-3,2
  Refractive Index:               1,5-1,7
  Dispersion (C-F):             0,012-0,02
  Heat Resistance:             up to 900 ºC / 1652 ºF