Art Deco Sapphire and Diamond Platinum 18k Rose Gold Dinner Ring. Featuring one cushion cut sapphire weighing approximately 0.75 carat. Accented by 18 calibré cut sapphires with a total weight of approximately 0.75 carat, and 40 rose cut diamonds with a total weight of approximately 0.30 carat, grade near-colorless, SI-I1 clarity. Crafted in 18 karat rose gold with a platinum top. Circa 1920.