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LOOSE FACETED BLUE SAPPHIRE    NATURAL COLOR    Hardness 9

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.
6.56 cts. Oval untreated blue sapphire single
         
6.56 carats oval sapphire, untreated blue sapphires, exclusive loose faceted sapphire, natural sapphire shopping

                   (ENLARGE

x Pieces: 1 Sapphire x x Type: 100% Natural
Color: Blue Shape: Oval faceted
Weight: 6.56 Carats Size: 12.8 x 8.75 mm
Clarity: NFL Luster: Excellent
Treatment: None (N) Origin: Madagascar
Small lack of color at a border, Refr. Index: 1.76-1.78 Hardness 9
(not as visible as shown on the picture)
Almost loupe clean, only a slight inclusion in the pavilion.   Untreated in any way.
6.56 carats untreated oval blue sapphire gemstone, transparent gems, exclusive loose faceted sapphires, gemstones shopping

Stone Price: 7650.00

ref:SAbo 656

6.56 carats untreated blue sapphire gemstone, transparent gems, exclusive loose faceted sapphires, gemstones shopping

6.56 carats unheated blue sapphire gemstone, transparent gems, exclusive loose faceted sapphires, gemstones shopping

           Depth:6.6 mm.  (Dichroism in the opposite direction to the table)

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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
 
 
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