This is a fabulous platinum engagement ring. The ring is centered with a sparkling GIA certified old mine cut diamond that weighs 1.25ct. The color of the diamond is J with SI1 clarity. The center diamond is accentuated by dazzling round cut diamond accents. The top of the ring measures 6mm by 16mm. The ring is stamped 900 PLAT 100 IRID and weighs 2.5 grams. The ring is size 5 1/4 but it can be resized.