20.34 ct Colour-Change Alexandrite

This oval 20.34 ct alexandrite from Sri Lanka exhibits a subtle colour change effect, appearing greenish yellow in daylight and yellowish brown under tungsten light. The stone shows no evidence of treatment and is considered rare at this size. Dimensions are 19.29 x 14.60 x 9.57 mm and the cut is modified brilliant/modified step. ICA Gemlab 2020 report.

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