White gold, tanzanite, garnet and diamond ring

18k white gold ring (750/1000) set with a diamond, a tanzanite, and a garnet. The diamond is princess-cut, weighing approximately 0.42 ct. The tanzanite is marquise-cut, weighing approximately 0.42 ct. The garnet is marquise-cut, weighing approximately 0.33 ct. Width at the top: 0.98 cm. Ring size: 56. Total weight: 4.31 g. Owl hallmark. Excellent condition.