Yellow gold and diamond ring

Ring set with 7 old-cut diamonds in 18k yellow gold (750/1000). Central diamond weighing approximately 0.75 ct. Surrounded by 6 diamonds: 2 of approximately 0.09 ct each, 2 of approximately 0.06 ct each, and 2 of approximately 0.04 ct each. Total diamond weight: 1.13 ct. Width at the top: 0.70 cm. Ring size: 52. Total weight: 3.60 g. Eagle's head hallmark. Excellent condition.