This 14-karat white gold setting holds one .50-ct. round or cushion-cut center stone. The round halo encircles the center stone and is set with 12 2-pt. round diamonds (SI1 clarity/G, H color; 24 pts. TW). Use peg settings in ring shanks with a hole; they allow you to be more accurate, clean and quick when positioning the setting on the shank. If desired, clip the peg to use the setting with other ring shanks or components. A classic choice, the 4-prong setting supports the gemstone on four sides.