TANK RING 18K ROSE GOLD, DIAMOND, SAPPHIRE

tank ring in 18k rose gold centered with a cushion-cut sapphire weighing approximately 6 ct. enhanced with brilliant-cut diamonds weighing approximately 2,7 ct. and calibrated sapphires weighing approximately 0,6 ct. Hallmarks : ‘750’ ‘owl’ size 60 circa 1950 gross weight : 17,8 grams.