This is a large octagon facet, bright-red, natural African Ruby gemstone. It weighs 9.65cts and measures 16.5x14.5mm.
Below are the main details:
Size: 16.5x14 mm
Shape:
Octagon-Facet
Colour:
Bright-Red
Clarity:
Translucent
Lustre:
Stunning
Origin:
Africa
Hardness:
9
Specific Gravity:
3.9 - 4.1
Refractive Index:
1.76 - 1.78
Chemical Composition:
Al2O3, Aluminum Oxide
Crystal Structure:
Trigonal
CLICK HERE TO SEE ALL OUR OTHER JEWELLERY AND GEMSTONE AUCTIONS