#8695 Star Sapphire - Twin Star 2.91 cts
Rare Collectors Gem!!
  Quantity : 1
  Carats : 2.91
  Size : mm 7.47 x 6.40
  Color : Light Grey - Twin Star
  Clarity : Opaque
See Clarity Scale
  Shape : Oval, Cabochon
  Treatment : None
  Origin Sri Lanka
  Location :
Colombo, Sri Lanka

SELLING PRICE US $ 65.00

 

Collectors Gem Suitable for Gemological Institutions & Gem Museums.

Beautiful Sharp Star effect

This Sapphire has a Double - Star.This Rare feature is Called Poly Asterism - Please see Gemological information

Natural gem Free of any Treatment

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R.I. : 1.759-1.778 Hardness : 9
Chemical Comp. : AL2O3
Density : 4.00
Crystal Group : Hexagonal

Double-star Sapphires display a double star - By light reflecting off the silky crystallizations of rutile inside called asterism. Double-Stars display twin asterism -this rare feature is called Poly-Asterism , Please see Gemmological details ,

Double -Stars are much sought-after by Gemmological I nstitutions and Students of Gemology and are extremely rare.