This 14-karat white gold ring mounting features a split-shank, double-bypass design and a 4-prong center mounting holds one .50-ct. (5mm, approx.) round faceted stone. The shank is semi-mounted with 34 .5-pt. round accent diamonds (SI1 clarity/G, H color; 17 pts. TW) in 4-prong mountings on two arms of the double-bypass design that frame the center mounting. Cut a seat in the mounting to accommodate your stone, then burnish the prongs over the stone to secure it in place.