Product ID: 806158853
Product Name: Black Sapphire
Price : $6.41
Weight: 1.05
Jewelry Size: 6.9 x 4.9 x 3.4 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