ONE HALF CARAT DIAMOND IN A 1950'S 14K CUP RING EN TREMBLANT: 14K yellow gold ring with cup containing one round brilliant cut diamond. Weight: .50 Ct. Approx. The diamond is rated SI2 in clarity and J-K in color. The diamond is prong set and mounted on a pin that moves within the cup. Florentine finish on outside of cup. Circa: 1950's Weight: 15.6 grams. Size: 7 No Reserve.