Marguerite ring in yellow gold, rubies and diamonds

18k yellow gold (750/1000) ring set with one ruby ​​and ten diamonds. One oval-cut ruby, weighing approximately 0.28 ct, surrounded by ten brilliant-cut diamonds, weighing approximately 0.20 ct each (each diamond weighing approximately 0.02 ct). Width at the top: 1.05 cm. Ring size: 50. Total weight: 2.45 g. Eagle's head hallmark. Excellent condition.