An outstanding Colombian Muzo emerald, coloured diamond and diamond ring, centring a claw-set emerald-cut Muzo emerald weighing 11.30 carats, to shoulders channel-set with graduated trapeze-shaped diamonds together weighing 1.29 carats, the under rail and gallery decorated with natural fancy yellow brilliant-cut diamonds between an edge pave-set with near colourless diamonds, the small diamonds together weighing 0.71 carats, mounted in platinum and 18ct gold, size L. Accompanied by a Muzo emerald Colombia certificate numbered WIP50 24-0003914-003, dated 29 April 2024, stating that the 11.30 carat emerald is natural, with evidence of minor clarity enhancement, of Colombia origin. Note, Colombian emeralds originating from the legendary Muzo mines in Cordillera Oriental in western Boyaca, Colombia are defined by their exceptional size, quality and beauty. Highly transparent, they display a rich forest green even colour distribution with a medium-dark tone and a vivid saturation.