The Carat Shop Harry Potter Ravenclaw Crest Earrings WE0025Official Harry Potter Licensed Earrings. These Crest charms are an exact replica of the actual image used in the Harry Potter films. They are 15 mm in length. Made from silver-plated metal. This is a genuine official item. Please take a look in our Amazon shop for our full range of Official Harry Potter Charms Necklaces Earrings and Bracelets. Comes on official gift card.