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  1. 6.40 Ct. Oval Shape Natural Multi Color Opal Sudan Gem

    Price:  $186.99

    Product ID: 818707337
    Product Name: Opal
    Price : $186.99
    Weight: 6.40
    Jewelry Size: 17.9 x 12.5 x 6.6 Mm
    Shape: Oval
    Color: Multi Color
    Clarity: VVS - SI
    Luster: Iridescent
    Origin: Ethiopia
    Treatment: Unheated
    Crystal Structure: Amorphous
    Hardness: 5.5 - 6.5
    Specific Gravity: 2.15
    Refractive Index: 1.42 - 1.43
    Chemical: SiO2·nH2O
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