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BI
COLOR BLUE-GREEN SAPPHIRE
Hardness 9 |
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SAPPHIRE
BI-COLOR
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. | | | | | 4.44 cts. Oval
natural blue-green sapphire single | | | | | x | Pieces: | | 1 Sapphire | x | x | Type: | | Genuine | | | | | | | | | | | Color: | |
Blue-green | | | Shape: | | Oval faceted | | | | | | | | | | | Weight: | | 4.44
Carats | | | Size: | | 10.3
x 8.2 mm | | | | | | | | | | | Clarity: | | NFL | | | Luster: | | Excellent | | | | | | | | | | | Treatment: | | Heated (H) | | | Origin: | | Madagascar |
Comment: Medium fresh blue-green. | | | | | | | | | |
Hand
cut by
one of our | | Refr. Index: | | 1.76-1.78 | | | Hardness | | 9 | masters
lapidaries. | | | | | | | Depth:6.5
mm. | |
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Stone
Price:
USD 6660.00
ref:SAb-groH444
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SAPPHIRE
BI-COLOR |
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Scale determining the purity of a stone.
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FL |
NFL |
SI1 |
SI2 |
MI1 |
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Flaw
less |
Near
flaw less |
Slightly
included 1 |
Slightly
included 2 |
Medium
included 1 |
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MI2 |
MI3 |
VI1 |
VI2 |
HI |
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Medium
included 2 |
Medium
included 3 |
Very
included 1 |
Very
included 2 |
Highly
included |
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