Indigo Tourmaline 0.57 ct / 2 pcs
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Product Details
Stone type: Indigo Tourmaline 
Weight: 0.57 ct / 2 pcs
Color: Blue
Dimension: 4.31 x 4.31 x 2.72 mm , 4.33 x 4.33 x 2.90 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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