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BI-COLOR SAPPHIRE Hardness 9 |
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RETURN TO »» SAPPHIRE BI-COLOR
Chemical properties: corundum is composed of pure alumina; its colouring is due to metallic
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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. |
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9.94 cts. Oval natural blue-green sapphire single |
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Pieces: |
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1 Sapphire |
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Type: |
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Genuine |
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Color: |
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Blue-green |
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Shape: |
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Oval faceted |
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Weight: |
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9.94 Carats |
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Size: |
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13.5 x 10.9 mm |
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Clarity: |
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NFL |
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Luster: |
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Excellent |
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Treatment: |
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Heated (H) |
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Origin: |
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Madagascar |
Comment: Dark blue-green. |
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Hand cut by one of our |
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Refr. Index: |
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1.76-1.78 |
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Hardness |
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9 |
masters lapidaries. |
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Depth:8.3 mm. |
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Stone Price: USD 5467.00
ref:SAb-gro994
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RETURN TO »» 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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