This 14-karat yellow gold open-shank ring mounting features a 5mm pearl cup & peg on one end of the shank. The pearl peg holds a single half-drilled pearl or gemstone bead at least 5mm in diameter. Mountings that aren't designed for specific pearl sizes accommodate a wide range of pearl diameters. For best results on mountings with a cup, choose a pearl at least 2mm larger than the cup diameter. Use jeweler’s epoxy to secure the pearl on the peg.