This is a gorgeous platinum engagement ring. The ring is centered with a lovely cushion cut sapphire that weighs approximately 5.65ct. The sapphire is accentuated by dazzling round cut diamond accents. The top of the ring measures 12mm by 12mm. The ring is stamped PLAT and weighs 5.2 grams. The ring is size 5 3/4 but it can be resized.