Jonc ring in yellow gold, emerald and diamonds

18k yellow gold (750/1000) ring set with an emerald and diamonds. One heart-shaped emerald, weighing approximately 0.40 ct, surrounded by two brilliant-cut diamonds, weighing approximately 0.06 ct. Width at the top: 0.80 cm. Ring size: 54. Total weight: 5.31 g. Owl hallmark. Excellent condition.