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LOOSE OVAL BLUE SAPPHIRE    NATURAL COLOR       Hardness 9
Online Certificate
RETURN TO SAPPHIRE BLUE

Chemical properties:  corundum is composed of pure alumina; its colouring is due to metallic

oxide traces or inclusions. The color of sapphire, due to iron and titanium oxide, gives its best 
effect under daylight.  Electric light makes it often dark.
Gems are generally found in alluvium, but come either from basaltic slags, or from metamorphized marble.
3.61 cts. Oval untreated natural blue sapphire single
         
3.61 carats oval sapphire, untreated blue sapphires, exclusive loose faceted sapphire, natural sapphire shopping

White spots are dust.

  x Pieces: 1 Sapphire x x Type: 100% Natural
 
  Color: Royal Blue   Shape: Oval faceted
                 
  Weight: 3.61 Carats   Size: 9.8 x 7.5 mm.
 
  Clarity: MI1   Luster: Excellent
 
  Treatment: None (N)   Origin: Madagascar
Commment:Dark-medium blue.   Refr. Index: 1.76-1.78   Hardness 9
Silk wire not as visible Depth:5.8 mm.
as on the picture.     Untreated in any way.
 

Stone Price:  USD 7220.00 

ref:SAboN361

  

3.61 carats oval sapphire, untreated blue sapphires, exclusive loose faceted sapphire, natural sapphire shopping

     

 

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- Scale determining the purity of a stone.  -
FL NFL SI1 SI2 MI1
Flaw less Near flaw less Slightly included 1 Slightly included 2 Medium included 1
-------------------------------------------------------------------------------------------------------------------------------------------------------------------
MI2 MI3 VI1 VI2 HI
Medium included 2 Medium included 3 Very included 1 Very included 2 Highly included
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.
 
Hardness: 9
Specific Gravity: 3.9 - 4.1   Visual Catalog
Refractive Index: 1.76 - 1.78 Corundum data
Chemical Composition: Al2O3, Aluminum Oxide
Crystal Structure: Trigonal    Cutting Styles
Sapphire Discovery   Ask a question
 
 
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