Indigo Blue Tourmaline 1.17 ct / 2 pcs

Stone type: Tourmaline no heat
Weight: 1.17 ct / 2 pcs
Dimension: 5.03 x 4.51 x 3.46 mm, 4.97 x 4.50 x 3.53 mm
Color: Indigo Blue
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*