Custom oval stones in a thin metallic frame, our Elle Earrings in Cobalt are classics sure to spark conversation. • 14k Gold Plated Over Bras • Size: 1.75"L x 0.75"W on earwire • Material: cobalt cat's eye Material Highlight: Cats Eye Glass Cat's Eye Glass contains optical fibers that allow the stone to change hues as it captures light. The term cat's eye describes the process conducted during the creation of the stone. Before the glass cools, thin transparent fibers are strung through the glass to create a reflective look.