Pandora's December Birthstone Eternity Circle Charm for December Birthstones adds a bit of radiance to your bracelet or pendant as you wear it. This special piece of jewellery features a turquoise-coloured cabochon stone set in the middle. A braided infinity design was used to create the piece. You can improve your everyday jewellery with this polished charm, which symbolises eternity and can be a stunning addition to your collection.