Beautiful design on this stamped 14K gold ring. Lots of detail around the stone. The Diamond setting and the 2 shields next to the Diamond are in white gold, and the rest of the ring is in yellow gold. White gold was often used to enhance the Diamonds. This is still done today. Tiffany and Co, sets their Diamonds in platinum prongs, and one can see a yellow gold band. The yellow gold design is quite detailed and delicate. I would estimate that the center Diamond is approx. 1/4 ct. I do not know clarity and color. The ring is size 6 1/2. Weight is 1.6grms. Condition is excellent. I would date this ring at c1930's--the high Deco period.