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LOOSE BLACK SAPPHIRE                   NATURAL COLOR                Hardness 9
Online Certificate
RETURN TO »» BLACK SAPPHIRE
 

21.30 cts. Natural Star Black Sapphire oval single 

17.1 x 13.9 x 8.5 mm. (Star Rutilated effect) 

Opaque. Enhancement: none (N) Untreated

stone PRICE 

USD 288 .00 

ORIGIN: Madagascar

ref. SAblao2130  

The bottom of this stone is flat which is always desirable in stars so you don't need to pay for a heavy bottom, this stone will be easy to set.

This is a virtual certificate compiled from the lab data for the gemstone being examined. Clarity is based on magnification
under a 10X corrected loupe. All gemology performed by GGGems. Jean & Alain Darbellay guaranteeing that this stone  
                        is 100% natural. Prices and availability are subject to change without notice.
 
Not treated in any way.
 
Hardness: 9
Specific Gravity: 3.9 - 4.1
Refractive Index: 1.76 - 1.78 Corundum data
Chemical Composition: Al2O3, Aluminum Oxide   Ask a question
Crystal Structure: Trigonal   Visual Catalog
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