Swiss Blue Topaz 66.40 Ct. Clean Oval Shape 28 x 21 Mm. Natural Gemstone Brazil
Price: $690.09
Product ID: 807155590
Product Name: Blue Topaz
Price : $690.09
Weight: 66.40
Jewelry Size: 28 x 21 x 14.8 Mm
Shape: Oval
Color: Swiss Blue
Clarity: IF
Luster: Very Good
Origin: Brazil
Treatment: Treated
Crystal Structure: Orthorhombic
Hardness: 8
Specific Gravity: 3.49 - 3.57
Refractive Index: 1.606 - 1.629
Chemical: Al2SiO4(F OH)2