This is a charming 18k yellow gold and platinum ring. The ring is set with lovely round cut sapphire, emerald and ruby that weighs 0.80ct, 0.37ct and 0.58ct respectively. The top of the ring measures 6mm by 16mm. The ring is stamped Pt900 750 0.580 0.37 0.80 and weighs 7.1 grams. The ring is size 5 3/4 but it can be resized.