NATURAL STAR SAPPHIRE 2.63 CTS - SRI LANKA LOOSE GEMSTONE - 18213 for Sale

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NATURAL STAR SAPPHIRE 2.63 CTS - SRI LANKA LOOSE GEMSTONE - 18213 For Sale

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NATURAL STAR SAPPHIRE 2.63 CTS - SRI LANKA LOOSE GEMSTONE - 18213:
$99.00

Cresla GemstoreStar Sapphire Double Star Medium Gray 2.63 Cts 18213
Rare Collectors GemCarats2.63 Size7.6 x 6.7mm ColorMedium Gray ClarityOpaque ShapeOval TreatmentNone OriginSri Lanka LocationColombo,Sri Lanka Price$99.00
Item Description

100% Natural - Not treated in any way.
Rare Colectors Gem.
Suitable for Museums,Institutions and Students of Gemology.
Will make a Gorgeous Ring or Pendent accented with Diamonds.
Beautiful sharp Star effect.
Among the Rarest of gemstones.
Asterism (or Ray Effect) is best seen in Bright Sunlight or by focussing a Flashlight on the face of the gem.

R.I. : 1.759-1.778 Hardness :9Chemical Comp. : AL2O3Density : 4.00Crystal Group : Hexagonal

Star Sapphires display a 6 rayed star - By light reflecting off the silky crystallizations of rutile inside called asterism.Star Sapphires are Corundum from translucent to opaque and 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 are called Color-change Star Sapphires which are rare and sought-after by collectors and connossiers alike.Top-quality sapphires are extremely rare. Beauty, magnificent colour, transparency, and durability are the main features. Color and asterism determines the value of a star sapphire. Highly saturated medium or dark medium tones are best. Sri Lanka is well known for the finest quality sapphires, and the largest sapphires in the world.

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