Opal Glitter Center Vintage Filigree Dangle Surgical Steel Belly Button Navel Ring. Opals are a beautiful luxurious look for every season. This vintage antique style belly ring is loaded with sparkle and charm. 14GA. 3/8" barbell. 5mm ball top. Dangle length is 7/8". Width of charm is 1/2". Also available in Rose Gold.