Treated Sapphire Appraisal

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Purple Star Sapphire Cabochon

This is a significant gemstone specimen identified as a natural purple star sapphire, weighing over 50 carats. It is presented in a large cabochon cut, which is essential for displaying the asterism (star) effect caused by needle-like inclusions of rutile. Physically, the stone exhibits a saturated reddish-purple to violet-purple hue with a translucent to opaque clarity. The construction of the cut appears to have a high dome, typical for stones of this size to maximize color depth. Regarding its condition, the stone shows some visible surface irregularities and a slightly asymmetrical girdle, which is common in hand-cut stones of historical or regional origin. There are no immediate signs of chips, though minor surface reaching inclusions are present. Large star sapphires of this magnitude, particularly over 50 carats, are quite rare and are often sourced from notable deposits in Sri Lanka (Ceylon) or Myanmar (Burma). The craftsmanship focuses on centring the star, which appears well-defined even under ambient light in the photograph. This piece represents a high-value collector's item due to its substantial weight and distinct color profile.

Estimated Value

$15,000 - $25,000

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