This is an amazing diamond platinum engagement ring from the 1920s. The ring is centered with a sparkling GIA certified old mine brilliant diamond that weighs 1.17ct. The color of the diamond is J with VS1 clarity. The center diamond is accentuated by dazzling old mine cut diamond accents. The top of the ring measures 6.5mm in diameter and weighs 3.6 grams. The ring is size 8 1/4 but it can be resized.