18K (750) white gold and platinum ring, set with a cushion-shaped emerald surrounded by 12 round brilliant-cut diamonds. Finger size: 49/50. Emerald size: 8.8 x 7.8 x 4.9 mm. Gross weight: 7.1 g (chips) The emerald is accompanied by a GEM-Paris report (2023) attesting: Colombian origin, moderate oil impregnation not significantly affecting the stone's appearance. A Colombian emerald (moderate oil) ring