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GENUINE ROUND BLUE SAPPHIRE NATURAL
COLOR
Hardness 9 |
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SAPPHIRE BLUE
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. | | | | | 1.39 cts.
Round natural blue sapphire single | | | | | x | Pieces: | | 1 Sapphire | x | x | Type: | | 100% Natural | | | | | | | | | | | Color: | | Blue-
green | | | Shape: | | Round faceted | | | | | | | | | | | Weight: | | 1.39 Carats | | | Size: | | 6.7
mm. | | | | | | | | | | | Clarity: | | SI1 | | | Luster: | | Excellent | | | | | | | | | | | Treatment: | | Heated
(H) | | | Origin: | | Madagascar | Comment: medium
dark blue. | | | | | | | | | | Good
cut. | | Refr. Index: | | 1.76-1.78 | | | Hardness | | 9 | Hand cut by
one of | | | | | | | Depth:4.5 mm. | our
masters
lapidaries. | | Stone
Price: USD 228.00 ref:SAbrH139
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SAPPHIRE BLUE |
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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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