Blue Tourmaline 0.19 ct/ 4 pcs website

Blue Tourmaline 0.19 ct/ 4 pcs

EB3187

Product Details

Stone type: Tourmaline 
Weight: 0.19 ct / 4 pcs
Color: Blue
Dimension:  3.38 x 3.38 x 1.54
mm,
                    2.27 x 2.27 x 1.54  mm
                    2.31 x 2.31 x 1.62 mm
                    2.22 x 2.22 x 1.57 mm
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*

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