Cocktail ring in yellow gold, lapis lazuli and diamonds

18k yellow gold ring (750/1000) set with 31 brilliant-cut diamonds, including a central diamond of approximately 0.15 ct, two of approximately 0.005 ct each, two of approximately 0.01 ct each, six diamonds of approximately 0.02 ct each, and 20 diamonds of approximately 0.05 ct each. Estimated total diamond weight: 1.30 ct. Lapis lazuli plaque. Ring size: 57. Motif dimensions: 2.10 x 2.45 cm. Total weight: 11.94 g. Eagle's head hallmark. Excellent condition