Jonc ring in white gold, sapphire and diamonds

18k white gold ring (750/1000) set with a sapphire and diamonds. One oval-cut sapphire, weighing approximately 1.78 ct, surrounded by eight princess-cut diamonds, weighing approximately 0.96 ct in total: two diamonds of approximately 0.20 ct each, four diamonds of approximately 0.10 ct each, and two diamonds of approximately 0.08 ct each. Width at the top: 1.06 cm. Ring size: 57. Total weight: 12.70 g. Eagle's head hallmark. Excellent condition.