This is an amazing platinum engagement ring. The ring is centered with a sparkling GIA certified old European cut diamond that weighs 1.64ct. The color of the diamond is L with VVS2 clarity. The center diamond is accentuated by lovely sapphire and diamond accents. The top of the ring measures 11mm by 13mm. The ring is stamped PLAT and weighs 5.7 grams. The ring is size 6 1/4 but it can be resized.