Indigo Tourmaline 0.75 ct / 2 pcs
Sale price:
$63.70
Regular price:$91.00
Stone type: Indigo Tourmaline
Weight: 0.75 ct / 2 pcs
Color: Blue
Dimension: 4.53 x 3.79 x 2.92 mm , 4.57 x 3.76 x 2.86 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*