Tank ring in yellow gold, white gold and diamonds

18k yellow and white gold ring (750/1000). Set with 23 brilliant-cut diamonds, totaling approximately 0.56 ct (one diamond weighing approximately 0.45 ct and 22 diamonds weighing approximately 0.005 ct). Width at the top: 0.72 cm. Ring size: 56. Total weight: 7.87 g. Owl hallmark. Excellent condition.