11.52 ct Cushion Blue Sapphire, GRS + AGL + GIA, Burma Unheated

11.52 ct Blue Sapphire, cushion cut, from Burma. Treatment: Unheated. Laboratory report by GRS and AGL and GIA. Full documentation and provenance are shared privately with the trade. Measurements: 16.80 × 12.19 × 5.82 mm. Our grading: gem quality vivid (royal) blue. Stock number CS-1250.

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