Harry Potter - Ravenclaw Crest Slider Charm Harry Potter - Ravenclaw Crest Slider Charm Harry Potter - Ravenclaw Crest Slider Charm £5.00 Quantity: at £5.00 each Add To Basket 2 in stock. Official Harry Potter Slider Charm Ravenclaw Crest Charm on a silver plated charm bail The crest of the famous Hogwarts House, founded by Rowena Ravenclaw This charm has been created using a print from the official style guide from Warner Bros. It is approx 15 mm x 20 mm. This charm comes on the official Harry Potter branded card packaging and shows the Warner Bros logo on the reverse. This charm is compatible with our other Harry Potter slider charms, necklaces and bracelets.