* Made from recycled solid 14k gold * can be worn in the lobe, helix, tragus, conch, flat and faux rook * Natural Opal * available in two post lengths 5mm & 8mm and is internally threaded * 6 mm x3 post is 1mm/ 18 gauge. * 12 month warranty All our pieces are ethically sourced and produced. Featuring a stunning opal star design, this 14k solid gold flat back earring adds a touch of elegance and cuteness to any outfit. We love the play of colours of the Opal, shifting from iridescent blues to soft pinks in the light. Stand out and shine like a star! Opals are October's Birthstone and said to inspire originality and boost creativity.