This is an amazing platinum engagement ring. The ring is centered with a sparkling GIA certified old mine cut diamond that weighs 1.21ct. The color of the diamond is I with SI1 clarity. The center diamond is accentuated by dazzling marquise and round cut diamonds that weigh approximately 0.40ct. The color of these diamonds is H with VS clarity. The ring is stamped 10% IRID PLATINUM and weighs 3.1 grams. The ring is size 6 1/2 but it can be resized.