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* RING, COLOMBIAN EMERALD in 18K white and yellow gold, set with a rectangular emerald weighing approximately 5.15 ct, flanked by two triangular diamonds, on a setting entirely embellished with brilliant-cut diamonds, 5.2 gr. Size 15.5. Gemological report no. 33361 dated July 2, 2026, issued by the CISGEM laboratory in Milan, certifying that the emerald is of Colombian origin.