This is an amazing platinum halo engagement ring. The ring is centered with a sparkling GIA certified round cut diamond that weighs 1.02ct. The color of the diamond is H with VS2 clarity. The center diamond is accentuated by dazzling round cut diamond accents. The top of the ring measures 9mm in diameter. The ring is stamped PT and weighs 4.6 grams. The ring is size 6 1/2 but it can be resized.