Tourmaline 2.76 ctsStone type: Tourmaline Weight: 2. 76 cts Dimension: 13. 30 x 5. 61 x 3. 98 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*

Weight: 27

27 ct / 2 pcs

near Luc Yen in Vietnam

Color: Lagoon

This natural Tourmaline displays intense olive color

88 cts / 2 pcs

79 cts / 3 pcs

32 cts / 2 pcs

Certified: GRS

Dimension: 14

Color: Olive

Stone type: Tourmaline no heat