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LOOSE KORNERUPINE                   NATURAL COLOR               Hardness 6.5 - 7
Online Certificate
RETURN TO Kornerupine
3.77 cts. Oval kornerupine faceted single
  x Pieces: 1 Kornerpine x x Type: 100% Natural
  Color: Greenish-yellowish-bluish   Shape: Oval
  Weight: 3.77 Carat   Size: 12.3 x 8.8 x 5.8 mm
  Clarity: NFL   Luster: Excellent
  Treatment: None (N)   Origin: Madagascar
    Refr. Index: 1.66-1.699   Hardness 7.5
  Depth:5.8  mm.
Stone Price:  USD 600.00






This kornerupine is overall greenish. Blue and yellowish sparkles are visible when the stone is moving. Its cut is quite good.

This is a virtual certificate compiled from the lab data for the gemstone being examined. Clarity is based on magnification under a 10X corrected loupe. All gemology performed by GGGems. Jean & Alain Darbellay guaranteeing that this stone  is 100% natural. Prices and availability are subject to change without notice.
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   Hardness: 6.5 - 7
   Specific Gravity: 3.29 - 3.34
   Refractive Index: 1.660 - 1.682 & 1.673 - 1.696  & 1674 - 1699 Kornerupine Data  
   Chemical Composition: Mg4Al6 ( (O,OH)2 I BO4 (SiO4)4 )
   Crystal Structure: Orthorombic
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