This stunning 18k white gold cathedral style gemstone engagement ring semi-mountfeatures G-H color eye-clean SI1 clarity natural diamond accents weighing 0.36 cttw. The 6.5mm round center stone, not included, is secure in a diamond accented built-in head with four twin prongs. The diamond studded shank is about 2mm wide and the center stone sits about 7.25mm high on the cathedral sides.. The center stone, a 6.5mm stone, not included. It matches wedding band 47-18K273-W, sold separately. This engagement ring is priced as a semi-mount only. It does not include a center stone. Call us today for a quote on mounting your favorite stone in this ring.