Sterling Silver White Gold Plated with Clear Cubic Zirconia Round Stud Earrings. These stud earrings feature one large round shape of cubic zirconia with smaller ones decorating. A thin wire of sterling silver creates a star-like design as the earrings secure with butterfly clasps. Measurement 8.7mm 2 Butterfly clasp Polished finish Imported Product Specifications 8.7mm N/Z Material & Care Sterling silver Clean with a soft cloth.