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  1. 5.90 Ct. Calibrate Size Octagon Natural Gem London Blue Topaz Brazil

    Price:  $32.60

    Product ID: 807163661
    Product Name: Blue Topaz
    Price : $32.60
    Weight: 5.90
    Jewelry Size: 11 x 9 x 6 Mm
    Shape: Octagon
    Color: London Blue
    Clarity: VSI
    Luster: Good
    Origin: Brazil
    Treatment: Treated
    Crystal Structure: Orthorhombic
    Hardness: 8
    Specific Gravity: 3.49 - 3.57
    Refractive Index: 1.606 - 1.629
    Chemical: Al2SiO4(F OH)2
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