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  1. 0.69 Ct. Vivid Natural Gem Blue Indicolite Tourmaline Octagon Shape

    Price:  $46.98

    Product ID: 807239857
    Product Name: Tourmaline
    Price : $46.98
    Weight: 0.69
    Jewelry Size: 13 x 2.6 x 2 Mm
    Shape: Octagon
    Color: Blue Indicolite
    Clarity: VVS
    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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