This is a Trilogy ring in a UK finger size M and a US finger size 6 1/4 The setting is made for 1 x 6.5mm Round centre stone & 2 x 4mm Round stones. The print volume is 267mm and the estimated weights are: Silver: 2.60gr9K Gold: 3.20gr 14K Gold: 3.40gr18K Gold: 4.20grPlatinum: 5.80gr