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BLUE SAPPHIRE
Hardness 9 |
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| 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. | |
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| Stone Price: USD 45.00 |
0.78
cts. Pear
blue sapphire single |
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x |
Pieces: |
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1
Sapphire |
x |
x |
Type: |
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Natural |
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Color: |
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Blue
zoning |
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Shape: |
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Pear
faceted |
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Weight: |
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0.78
Carats |
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Size: |
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11.2 x 8 mm. |
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Clarity: |
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NFL |
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Luster: |
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Good |
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Treatment: |
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Heated
(H) |
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Origin: |
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Madagascar |
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| We use a microscopic photography |
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Refr. Index: |
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1.76-1.78 |
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Hardness |
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9 |
| system. The actual gemstone is smaller than the images shown. |
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Inclusions
seen in photos will be less visible to the naked eye. |
| Stone Price: USD
45.00
ref:XSAp078
 
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Depth:4.1 mm. |
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A.
Darbellay; your guide to GGGems.com |
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Customer Commitment |
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