Lab Created Pulled Czochralski Dark Blue Sapphire Rough

ROUGH STONE DETAIL

• Origin: Grown in Lab by Pulled Czochralski method. One of the best ways to produce top quality gems.
• Dimensions: About 31x12x7mm
• Grade: AAA
• Clarity: Eye Clean
• Shape: Rough
• Color: Medium to Dark Blue
• Polish: Very Good
• Hardness: 9 (Mohs Scale)
• Stock Postion: Available

Chemical Properties

• Chemical Composition: Aluminium Oxide (AL2O3), (Chromium; minor component)
• Refractive index: 1.76 – 1.77
• Density: 3.9-4.1
• Specific gravity: 3.58
• Dispersion: 0.018
• Length of Crystal: Length is up to 30-100mm and diameter is about 10-30mm