NWT Cobalt Blue Kyocera Opal Grayson Stud Earrings in Gold "Say hello to a polished pair of studs in a Kendra Scott signature shape. The Grayson Gold Stud Earrings in Cobalt Blue Kyocera Opal are sophisticated and unique, featuring our iconic silhouette inlaid with brightly hued stones." Retail price: $85.00 Metal:14k Gold Over Brass Material: Cobalt Blue Kyocera Opal Closure: Ear Post Size: 0.5"L X 0.3"W