Harry Potter Sterling Silver Diadem slider Charm with Crystals Harry Potter Sterling Silver Diadem slider Charm with Crystal Elements A sterling silver slider charm designed in the style of Rowena Ravenclaws Diadem, which was worn to enhance the wisdom of the wearer. It has feather detailing and is set in the centre with a blue crystal and finished with a blue crystal tail feather. A matching necklace, earrings and ring are available Made from Sterling Silver with crystal detailing and supplied boxed in Harry Potter branded packaging. The Carat Shop Ltd are the licensed manufacturers of Harry Potter Jewellery 1.8g 2.0l x 1.8w x 0.2w