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| UNTREATED BLUE SAPPHIRE NATURAL COLOR Hardness 9 |
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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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1.13 ct. Oval natural blue sapphire single |
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Pieces: |
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1 Sapphire |
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Type: |
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100% Natural |
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Color: |
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Blue |
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Shape: |
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Oval faceted |
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Weight: |
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1.13 Carats |
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Size: |
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6.5 x 5 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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None (N) |
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Origin: |
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Madagascar |
| Comment: Medium blue. |
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Refr. Index: |
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1.76-1.78 |
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Hardness |
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9 |
| Hand cut by one of our |
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Depth:4.1 mm. |
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Not treated in any way. |
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| Stone Price: SOLD
ref:SAboN113
 
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| 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 |
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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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