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BLACK SAPPHIRE                   NATURAL COLOR                Hardness 9
Online Certificate

40.38 cts. Natural Black Sapphire oval single 

20.6 x 17.3 x 10.8 mm.    (Star) A vein appears at the surface.

Opaque. Enhancement: none (N) Untreated

stone PRICE 

USD 484.00 

ORIGIN: Madagascar

  ref. SAblao4038  

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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