CHRYSOBERYL CATS EYE 3.65 CTS NATURAL CEYLON LOOSE GEM 14923

Ideal Gem for your collection.
Collectors Gem Suitable for gemological Institutions.
Large Sizes are Rare.
Among the Rarest of Gemstones.
Natural gem Free of any Treatment.
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 Cats eye effect.
Large Sizes are Extremely Rare.
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: 1.741 - 1.760
Hardness: 8.5
Chemical Comp: BeAl2O4
Density: 3.73
Crystal Group: Orthorhombic

The Chrysoberyl cats eye is a miracle of Nature! This gem has a thin Bright Silver band of light on a shimmering golden background, and glides across the surface.Fine inclusions in the stone are responsible for this phenomenon calledchatoyancy. The incident light is reflected in such a way that that a bright strip of light appears running perpendicular to the inclusions.