OJ PERRIN ring in yellow gold, sapphire and diamonds

OJ Perrin ring in 18k yellow gold (750/1000). Set with an oval sapphire of approximately 1.60 carats and eight square-cut diamonds totaling 0.40 carats (each diamond weighing approximately 0.05 carats), and twenty brilliant-cut diamonds totaling approximately 0.20 carats (each diamond weighing approximately 0.010 carats). Estimated total diamond weight: 0.60 carats. Ring size: 49. Width at the top: 0.89 cm. Total weight: 5.78 g. Eagle's head hallmark. Excellent condition.