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100% Natural Gems
BLACK STAR SAPPHIRE 6 RAY 11.67 CTS - NATURAL SRI LANKA LOOSE GEMSTONE 21042
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BLACK STAR SAPPHIRE 6 RAY 11.67 CTS - NATURAL SRI LANKA LOOSE GEMSTONE 21042

Product Code:21042
Availability: In Stock
  • $580.00

    $290.00

Carats 11.67
Size 14.10 x 13.96 x 5.46 mm
Color Black
Clarity OP
Shape Oval
Treatment None
Origin Sri Lanka
Location Colombo, Sri Lanka
Price $ 580.00
100% Natural - Not treated in any way.
Beautiful Center-stone for an engagement Ring.
Will make a Gorgeous Ring or Pendent accented with Diamonds.
Beautiful sharp Star effect.
A Gem of Lasting Beauty.
Large Sizes are Extremely Rare!
Asterism (or Ray Effect) is best seen in Bright Sunlight or by focussing a Flashlight on the face of the gem.

Refractive Index: 1.759-1.778
Hardness: 9
Chemical Comp: AL2O3
Density: 4.00
Crystal Group: Hexagonal

Star Sapphires display a 6 rayed star - By light reflecting off the silky crystallizations of rutile inside called asterism. Star Sapphires comes in a range of colors but the finer Blues, Reds, Green yellow orange and Padparaschas are extremely rare. Some color-change Corundum also displays asterism, and is called Color-change Star Sapphires. Top-quality sapphires are extremely rare. Beauty, magnificent color, transparency, and durability are the main features. Color and asterism determines the value of a star sapphire. Sri Lanka is known for the finest and the largest sapphires in the world.

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