Marguerite ring in white gold, emerald and diamonds

18k white gold ring (750/1000) set with an emerald and diamonds. The oval-cut emerald weighs approximately 0.53 ct and is surrounded by ten brilliant-cut diamonds totaling approximately 0.50 ct. Width at the top: 1.30 cm. Ring size: 50. Total weight: 3.08 g. Eagle's head hallmark. Excellent condition.