Yellow gold, sapphire and diamond ring

750 thousandths (18K) yellow gold ring, set with sapphire and diamond. One oval-cut sapphire, weighing approximately 1.01 ct, surrounded by 10 brilliant-cut diamonds, with a total weight of approximately 0.2 ct (each diamond weighing approximately 0.02 ct). Top width: 0.59 cm. Ring size: 55. Total weight: 5.20 g. Owl hallmark. Excellent condition.