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  1. Certified 3.30 Ct. Clean Cushion Natural Violetish Blue Tanzanite D Block

    Price:  $707.14

    Product ID: 807006203
    Product Name: Tanzanite
    Price : $707.14
    Weight: 3.30
    Jewelry Size: 9.49 x 8.93 x 5.08 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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