The Round CZ Double Millgrain piece features a 2mm clear CZ stone in the center adorned by two close-set rows of metal beads (millgrain). This threadless decorative end is available in 14 karat Yellow Gold ( White Gold and Rose Gold options available for special order). Measuring 5.25mm x 5.25, it can be used in any piercing that is fit with a threadless post from all major jewelry vendors.