From the REEDS Exclusive Roberta Z Semi-Mount Collection, this classic 18k white gold semi-mount features a four prong head that holds a 1ct round cut diamond. This semi-mount features a diamond halo with more diamonds accenting the shoulders of the semi-mount and the matching band. Diamonds are 1/2ctw, I or better in color, and SI2 or better in clarity. Semi-mount is 10mm across the top and 4mm at the bottom. Matching band is 3mm at the top and 2mm at the bottom. This ring does not come with a center stone.