Ruby, Cabochon, 40.80 CT

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This enchanting star ruby of great significance not only has a glorious purplish-red color, but also a bright, vivid star, the phenomenon known as asterism. Asterism is caused by tiny needle-like inclusions that reflect and scatter light within the stone and requires skilled cabochon cutting to bring it forward. Fine star rubies usually show a six-rayed star such as this that glides smoothly back and forth as you rock the gem gently. Typically found in sizes ranging from 1–10 carats, a star ruby weighing 40.80 carats is a rare prize indeed, eagerly sought by gem collectors and connoisseurs. Make a wish, and it’s yours!


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  • 3 day return Policy
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  • insured shipping
  • GIA certified diamonds
  • AGL or SSEF certified gemstones
  • updated certificates guaranteed
  • unheated gems
  • photos are not retouched
  • all of our treasures can be verified by a gemologist