Carats | 17.81 |
Size | 18.62 x 13.98 mm |
Color | Black |
Clarity | OP |
Shape | Oval |
Treatment | None |
Origin | Sri Lanka |
Location | Colombo, Sri Lanka |
Price | $ 990.00 |
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 Catseye effect. Large Sizes are Extremely Rare! A Gem of Lasting Beauty. Chatoyancy is Cats Eye gems 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 cat's 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 called chatoyancy. The incident light is reflected in such a way that that a bright strip of light appears running perpendicular to the inclusions.