7.55 Ct. Oval Cabochon Natural Black Star Sapphire 6 Rays
Price: $30.26
Product ID: 806142806
Product Name: Star Sapphire
Price : $30.26
Weight: 7.55
Jewelry Size: 12.8 x 8.8 x 5.7 Mm
Shape: Oval Cabochon
Color: Black
Clarity: Opaque
Luster: Good 6 Rays Star
Origin: Thailand
Treatment: Heated
Crystal Structure: Trigonal
Hardness: 9
Specific Gravity: 3.9 - 4.1
Refractive Index: 1.76 - 1.78
Chemical: Al2O3, Aluminum