This 14-karat white gold ring mounting features a 4-prong center mounting that accommodates one .20-ct. (3.7mm, approx.) round faceted stone and is semi-mounted with 29 .4-pt. diamonds (SI clarity/G,H color; 11.6 pts. TW) in prong mountings. The split-shank design gives the ring an eye-catching three-band criss-crossing appearance. The shank on this ring tapers from 5mm to 2.2mm (approx.). Cut a seat in the mounting to accommodate your stone, then burnish the prongs over the stone to secure it in place.