Solitaire ring in yellow gold, sapphire and diamonds

18k yellow gold ring (750/1000) set with a sapphire and diamonds. One oval-cut sapphire, weighing approximately 0.35 ct, surrounded by eight brilliant-cut diamonds, totaling approximately 0.08 ct (each diamond weighing approximately 0.01 ct). Width at the top: 0.59 cm. Ring size: 54.5. Total weight: 4.09 g. Owl hallmark. Excellent condition.