Product ID: 806158840
Product Name: Black Sapphire
Price : $6.09
Weight: 0.92
Jewelry Size: 7 x 5.1 x 2.9 Mm
Shape: Oval
Color: Black
Clarity: Opaque
Luster: Good
Origin: Australia
Treatment: Heated
Crystal Structure: Trigonal
Hardness: 9
Specific Gravity: 3.9 - 4.1
Refractive Index: 1.76 - 1.78
Chemical: Al2O3, Aluminum