Official Harry Potter Chocolate Frog Slider Charm with Embellished with Swarovski® Crystals Our Chocolate Frog Slider Charm is made from Sterling Silver with gold plating and Swarovski Crystals. This charm has been created using the official style guide from Warner Bros. The Chocolate Frog was a magical confectionary first seen in Harry Potter and The Philosophers Stone. This charm comes in the official Harry Potter branded box and shows the Warner Bros logo on the reverse and is compatible with our Sterling Silver Harry Potter Charm Bracelet. The Carat Shop are the official licensed manufacturers of Harry Potter Jewellery on behalf of Warner Bros.