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  1. 1.74 Ct. Clean Natural Violetish Blue Cushion Tanzanite Gem

    Price:  $242.75

    Product ID: 807006563
    Product Name: Tanzanite
    Price : $242.75
    Weight: 1.74
    Jewelry Size: 8.4 x 4.7 x 3.4 Mm
    Shape: Cushion
    Color: Violetish Blue
    Clarity: IF
    Luster: Very Good
    Origin: Tanzania
    Treatment: Heated
    Crystal Structure: Orthorhombic
    Hardness: 6 - 7
    Specific Gravity: 3.2 - 3.4
    Refractive Index: 1.69 - 1.70
    Chemical: Ca2Al3(SiO4)3(OH), Calcium Aluminum
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