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OCTAGON BLUE SAPPHIRE                                        Hardness 9

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4.21 cts.  Blue Sapphire octagon single

10.8 x 6.1 x 5.2 mm. (Mixed step cut.) Tone: medium

Slightly included. Enhancement: heated (H)

stone PRICE 

USD 763.00 

ORIGIN: Madagascar 

  ref:SAbe421  

 
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Hardness: 9
Specific Gravity: 3.9 - 4.1
Refractive Index: 1.76 - 1.78   Visual Catalog
Chemical Composition: Al2O3, Aluminum Oxide Corundum data
Crystal Structure: Trigonal    Cutting Styles
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