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Natural Star Sapphire

Sapphires that display asterism are known as "stars" in the trade. They may occur in almost any color. The star is a result of the light reflecting of off of the silky crystallizations of rutile inside the stone.


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Star Sapphire Profile

Color information: Blue, green blue, violet, blue, black, brown, pink.
Refractive Index: 1.759-1.778
Chemical Composition: AL2O3
Hardness: 9
Density: 4.00
Crystal Group: Hexagonal
Ocurrence: Sri Lanka, Burma, India, East Africa, Ankarana-Madagascar, Thailand.
Sign of the Zodiac: N/A
Month of the year: N/A
Star Sapphire Star Sapphire
Madagascar star sapphires from Ankarana frequently display excellent asterism. Our photographs are taken with a fiber optic light above the stone. The stars will look like this in sunlight or under a spotlight. The denim blue color of Madagascar Star Sapphires can be quite even except for the crystal growth lines which prove that the stone is natural.

A great stone for a man's or women's ring, natural star sapphires are never clean. It is the silk inside them that accounts for the asterism and clean stars do not exist.

In terms of price and quality, blue star sapphires from Madagascar are incomparable in value. Ceylon and Burma both produce limited quantities of blue stars but although they may occasionally be better in quality, their prices are normally substantially higher.

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Tourmaline Single
From our finest gemstones collection
Tourmaline Single Heart Eye clean
Size: 11.30 X 14.40 MM
Weight: 7.860 CTS
Shape: Heart
Clarity: Eye clean
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Tahitian Pearl Single
limited time offer, ref# YPL189ci
Tahitian Pearl Single Round N/A
Size: 12.20 X 12.20 MM
Weight: 12.940 CTS
Shape: Round
Clarity: N/A
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Today’s Trade/
Best Selling Gems:
Sapphire Sapphire
647 Sapphire ’s available
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258 Alexandrite ’s available
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238 Zircon ’s available
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Gemstone Variety: Hits Index
Going Down Sapphire -3420 -0.2%
average price USD 318.36 per item
Going Down Alexandrite -1783 -0.1%
average price USD 1965.54 per item
Going Down Tsavorite -1939 -0.2%
average price USD 191.42 per item
Going Down Spinel -1287 -0.1%
average price USD 670.46 per item
Going Up Diamond +105 +0.0%
average price USD 16404.51 per item
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