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  1. 1.47 Ct. Octagon Shape Natural Gem Bi Color Tourmaline Unheated

    Price:  $97.77

    Product ID: 807234661
    Product Name: Tourmaline
    Price : $97.77
    Weight: 1.47
    Jewelry Size: 6.1 x 5.7 x 4.5 Mm
    Shape: Octagon
    Color: Bi Color
    Clarity: VVS - VSI
    Luster: Good
    Origin: Nigeria
    Treatment: Unheated
    Crystal Structure: Trigonal
    Hardness: 7 - 7.5
    Specific Gravity: 3.0+
    Refractive Index: 1.62 - 1.68
    Chemical: Na(Li,Al)3Al6(B03)3 Si6O18(OH)4
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