Official Sterling Silver Harry Potter Deathly Hallows Necklace Sterling Silver Deathly Hallows Charm on a Necklace This charm has been created using the official style guide from Warner Bros. The charm is approx 15 mm in height and 15 mm wide The Necklace is a sterling silver chain which is 16 inches in length with a 2.5 inch extender chain This necklace comes on the official Harry Potter branded card packaging and shows the Warner Bros logo on the reverse The Carat Shop are the official licensed manufacturers of Harry Potter Jewellery on behalf of Warner Bros.