Round 6-Prong Claw Prong Necklace Center Mounting With ChainRound 6 prong claw necklace setting with chain, these settings are precisely crafted with metal mold for a finer finish. These high quality semi polished settings are intended for faceted gemstones, require notches to be cut according to your gemstone with the proper tools and skills to set and finish. Pre notched claw settings have a vertical groove in the prong setting. The grooves in the prongs serve as a marker of where to place your stone to set