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  1. 7.55 Ct. Oval Cabochon Natural Black Star Sapphire 6 Rays

    Price:  $30.26

    Product ID: 806142806
    Product Name: Star Sapphire
    Price : $30.26
    Weight: 7.55
    Jewelry Size: 12.8 x 8.8 x 5.7 Mm
    Shape: Oval Cabochon
    Color: Black
    Clarity: Opaque
    Luster: Good 6 Rays Star
    Origin: Thailand
    Treatment: Heated
    Crystal Structure: Trigonal
    Hardness: 9
    Specific Gravity: 3.9 - 4.1
    Refractive Index: 1.76 - 1.78
    Chemical: Al2O3, Aluminum
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