Lagoon Tourmaline 2.73 cts

Stone type: Tourmaline no heat
Weight: 2.73 cts
Dimension: 8.85 x 8.85 x 5.70 mm
Color: Bluish-green
Shape & Cut: Round, 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*