Marquise ring in white gold, turquoise, sapphires and diamonds

18k white gold ring (750/1000) set with turquoise, diamonds, and sapphires. One cabochon-cut turquoise, weighing approximately 6.10 carats, surrounded by ten brilliant-cut diamonds, weighing approximately 1.00 carat. Four round-cut sapphires, weighing approximately 0.28 carats, and two pear-shaped sapphires, weighing approximately 0.30 carats. Width at the top: 2.37 cm. Ring size: 51. Total weight: 8.50 g. Owl hallmark. Excellent condition.