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  1. 1.79 Ct. Natural Gemstone Oval Shape London Blue Topaz

    Price:  $11.28

    Product ID: 807156619
    Product Name: Blue Topaz
    Price : $11.28
    Weight: 1.79
    Jewelry Size: 8.9 x 7.2 x 3.9 Mm
    Shape: Oval
    Color: London Blue
    Clarity: SI1
    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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