STAR SAPPHIRE BLUE GRAY 2.42 CTS NATURAL SRI LANKA GEMSTONE 18514

100% Natural – Not treated in any way.
A Stunning 6 Ray Star.
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.
Asterism (or Ray Effect) is best seen in
Bright Sunlight or by focusing 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.