18k white gold gemstone engagement ring semi-mount with 64 G-H color eye-clean SI1 clarity natural diamond accents weighing 0.26 cttw. This gorgeous ring features a 6x6mm square cushion cut center stone, not included. The split shank measures 2.5mm at bottom and 4.5mm at shoulder. It matches wedding band style 47-18K111-100W, sold separately, and can be set with a square cushion cut center as well. 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.