宝石颜色
#46 Color Change Corundum
宝石尺寸
4*2mm~11*8mm (or customized)
宝石重量
According to the size
Size in Stock
2*2mm~12*12mm
crystal system
orthorhombic system
Hardness
8-8.5 Moh's Scale
Optical property
Biaxial crystal, photic
Refractive index
1.745-1.755
Recognition
Emerald by day, ruby by night
Polished surface
Bright glass luster to sub - diamond luster