This is a fabulous platinum engagement roing. The ring is centered with a lovely GIA certified oval cut sapphires that weigh 6.21ct. The sapphire is accentuated by sparkling emerald cut diamonds that weigh 2.20ct. The top of the ring measures 12mm by 21mm. The ring is stamped Pt900 S6.21 D2.20 and weighs 9.7 grams. The ring is size 6 1/2 but it can be resized.