This is a cute Tiffany & Co. 18K Yellow Gold, Platinum, Pink Sapphire and Diamond Ring. The Pink Sapphire is Round cut surrounded by 2 Trillion Cut Diamonds. Everything on the Ring is made out of 18K Yellow Gold except for the Prongs on the Trillion Cut Diamond that are made in Platinum. Total weight of the item is 2.7 grams and ring size is 5.