Product ID: 806143461
Product Name: Star Sapphire
Price : $16.56
Weight: 3.68
Jewelry Size: 9 x 6.6 x 5.3 Mm
Shape: Oval Cabochon
Color: Black
Clarity: Opaque
Luster: Good 6 Rays Star
Origin: Thailand
Treatment: Unheated
Crystal Structure: Trigonal
Hardness: 9
Specific Gravity: 3.9 - 4.1
Refractive Index: 1.76 - 1.78
Chemical: Al2O3, Aluminum