This is an amazing platinum engagement ring. The ring is centered with a sparkling GIA certified old European cut diamond that weighs 3.51ct. The color of the diamond is I with VVS2 clarity. The center diamond is accentuated by dazzling shield cut diamond accents. The top of the ring measures 10mm in diameter. The ring is stamped IRID PLAT and weighs 3.8 grams. The ring is size 6 1/4 but it can be resized.