This is a rare Christian Dior Princess Ring from the 2005 collection, which is a collectible beauty accessory. It features silver-tone metal with blue enamel sides and is adorned with rhinestone crystals. The top of the ring opens to reveal a mirror and two shades of lip gloss inside. It is a multi-use item that functions as a large cocktail ring, a pendant, or a keychain/bag charm, thanks to the attached chain. This specific item is a highly sought-after vintage makeup collectible