AN ESTATE PLATINUM DIAMOND AND SAPPHIRE RING Ca: 1915-1925: Platinum ring contains 18 round Swiss cut diamonds totaling approx. .33 Ct., Rated VS-SI in clarity and H-I in color. At the center is a 1.10 Ct rectangle native cut sapphire, VS-SI in clarity, B in Hue, 6 in Tone 3-4 in Saturation. Abraded crown. The diamonds are gypsy and bead set. The sapphire is gypsy set. Weight: 3.6 grams. Size: 5