Circa. 1925 Deco-inspired ring from the mid 1920's Platinum tested with platinum acid. Tourmaline tested with refractive index liquid. Both side diamonds tested with a diamond tester. Dark, rich green emerald-cut tourmaline - weighs approximately 2.0 carats. 2 old mine-cut round diamonds, IF (Internally flawless) D color with weight of .60 carats (the finest of diamonds) Hallmark on shank. Size 8 1/4 Can be easily sized by a jeweler.