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  1. Unheated 13.69 Ct. Oval Natural Multi Color Opal Sudan

    Price:  $331.20

    Product ID: 818711499
    Product Name: Opal
    Price : $331.20
    Weight: 13.69
    Jewelry Size: 20 x 15.8 x 9.8 Mm
    Shape: Oval
    Color: Multi Color
    Clarity: Semi - Transparent
    Luster: Good
    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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