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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.


  • There are 44 Star Sapphire gemstones available at Multicolour.com
  • Star Sapphire(s) are organized in the following categories: Single,  gemstones.
  • Our most expensive Star Sapphire is USD 4995.20 and largest Star Sapphire weight is CTS 16.59.
  • Our cheapest Star Sapphire is USD 81.00 and smallest Star Sapphire weight is CTS 1.00.

Find your Star Sapphire

Our Star Sapphire(s) are available in various shapes, sizes and colors. 44 Star Sapphire(s), too many to look through? You may select any combination of search options. Colors grade into each other and you can search for more than one color at once. For a better selection, try selecting two or three colors, -- your first choice plus the two closest colors.

Shape Length (mm) Width (mm)
Category Weight (cts) Price (USD)
Color range
green
violet
blue
bluish purple
violetish blue
purple
bluish violet
reddish purple

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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Finest gems/
Taaffeite Single
From our finest gemstones collection
Taaffeite Single Oval Eye clean
Size: 8.58 X 7.63 MM
Weight: 2.320 CTS
Shape: Oval
Clarity: Eye clean
Usually ships within 24 hours
OUR PRICE
USD 4141.50
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Today’s Trade/
Best Selling Gems:
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739 Sapphire ’s available
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Tanzanite Tanzanite
189 Tanzanite ’s available
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Spinel Spinel
481 Spinel ’s available
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286 Zircon ’s available
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Alexandrite Alexandrite
339 Alexandrite ’s available
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Gemstone Variety: Hits Index
Going Up Alexandrite +458 +0.1%
average price USD 1627.75 per item
Going Down Tsavorite -445 -0.1%
average price USD 141.72 per item
Going Up Sapphire +638 +0.2%
average price USD 300.98 per item
Going Down Spinel -353 -0.1%
average price USD 657.14 per item
Going Up Tanzanite +58 +0.0%
average price USD 852.39 per item
See more real time gem reports.
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Euro 0.723
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Japan Yen 102.255
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Gem Library /
Gems Legend and  Lore This month birthstone: Diamond
More from the Gem Library about Birthstones.
Taurus Taurus
April 20 – May 20
Mutable Sign. Very earthy and quiet. Your zodiac stone...more

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