PLATINUM DECO DIAMOND RING WITH SAPPHIRES CA. 1920'S: Platinum ring contains three old European round cut diamonds and forty round single cut diamonds. WEIGHT: 1.75 Ct. Approx. The diamonds average VS in clarity and G-H in color. Fifteen calibré cut sapphires of unknown origin. The diamonds are bead set. The sapphires are channel set. Weight: 4.5 grams. Size: 5