A round turquoise stone is set in a frame of a black paint line and a border of shining clear stones dangling from a French hook. Rhodium plating over a brass base. Cubic zirconia stones. Reconstituted turquoise stone. Hypoallergenic stainless steel French hooks.... (read more) Montana Armor protective finish to prevent tarnish. Paint. All Montana Silversmiths jewelry and accessories have a lifetime limited warranty on manufacturing defects when accompanied by a receipt.