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GENUINE BLUE SAPPHIRE                                   Hardness 9


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.
6.30 cts. Genuine Oval blue sapphire single
x Pieces: 1 Sapphire x x Type: Genuine
Color: Dark Blue Shape: Oval faceted
Weight: 6.30 Carats Size: 12.8 x 9.9 mm.
Clarity: Almost eye clean. Luster: Excellent
Treatment: Heated (H) Origin: Madagascar
Comment: Dark metallic blue. Refr. Index: 1.76-1.78 Hardness 9
There is no window.
Hand cut by one of  Depth:6.2 mm.
our masters lapidaries.
Step cut.        

Stone Price:  SOLD 




The ref: SAbo630 shows a dark metallic blue, but it is not black. In some position, a silky veil can be seen in the pavilion and under the table. This sapphire do not shows any green sparkles, its color is just a commercial blue and not a royal blue
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- Scale determining the purity of a stone.  -
Flaw less Near flaw less Slightly included 1 Slightly included 2 Medium included 1
Medium included 2 Medium included 3 Very included 1 Very included 2 Highly included
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