Indigo Blue Tourmaline 0.70 ct
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Product Details
Stone type: Tourmaline
Weight: 0.70 ct
Color: Indigo Blue
Dimension: 5.66 × 4.90 × 3.40 mm
Shape & Cut: Cushion, Yavorskyy cut
Treatment: Unheated and Untreated (No Indications Observed)
Refractive Index: 1.618-1.643
Hardness: 7-7.5
Specific Gravity: 3.1
Optical properties: Doubly refractive
Chemical formula: Complex Boron Silicate
Shipment from: Thailand
Return Policy: 3 Day Money-Back Return*
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