Pompadour Yellow Gold Sapphire and Diamond Ring

18k yellow gold (750/1000) ring set with a sapphire and diamonds. One oval-cut sapphire, weighing approximately 1.72 carats, surrounded by ten brilliant-cut diamonds, weighing approximately 0.50 carats each (each diamond weighing approximately 0.05 carats), and ten baguette-cut diamonds, weighing approximately 1.20 carats each (each diamond weighing approximately 0.12 carats). Total diamond weight approximately 1.70 carats. Width at the top: 1.60 cm. Ring size: 52. Total weight: 6.70 g. Owl hallmark. Excellent condition.