Simple and elegant Kendra Scott "Betty" stud earrings. Silver-Plated setting with white Kyocera opal stones. Kyocera opals are lab grown, synthetic opals made by the company Kyocera. These are not real opals. The earrings have a beautiful irridescent sheen that changes color in different lighting. Earrings measure 5/8" with straight back posts and plastic stoppers. New received as gift and I cannot wear earrings.