This is an amazing platinum engagement ring from the 1920s. The ring is centered with a sparkling GIA certified old European cut diamond that weighs approximately 0.54ct. The color of the diamond is J with VS1 clarity. The center diamond is accentuated by dazzling marquise and round cut diamond accents. The top of the ring measures 5mm by 15mm. The ring is stamped 10% IRID PLAT and weighs 2 grams. The ring is size 7 1/2 but it can be resized.