Tank ring in pink gold and diamond

Tank ring in 18k rose gold (750/1000), retro style. Set with 7 old-cut diamonds, totaling approximately 0.92 ct (1 diamond of approximately 0.07 ct, 2 diamonds of approximately 0.05 ct each, and 4 diamonds of approximately 0.03 ct each). Width at the top: 1.83 cm. Ring size: 55. Total weight: 4.28 g. Eagle's head hallmark. Excellent condition.