Official Harry Potter Sterling Silver Lightning Bolt & Glasses Necklace Our Harry Potter Sterling Silver Lightning Bolt and glasses necklace is made from Sterling Silver with a gold-plated lightning bolt. The design is an iconic one for any Harry Potter fan. The necklace has been created using the official style guide from Warner Bros and comes presented in official Harry Potter branded packaging which shows the Warner Bros logo on the reverse. There are matching earrings and a ring in this collection. The Carat Shop are the official licensed manufacturers of Harry Potter Jewellery on behalf of Warner Bros.