18k Gold Filled Curved Bar Black Crystal Stud Earrings. Gorgeous minimalist stud with five synthetic crystal stones. Metal: 18k Gold Filled Size: 12 mm  Bar stud Weight: 1.4 grams/ pair Black Crystal Stones Hypoallergenic jewelry - Nickel Free Water-resistant Rigorously manufactured under CA Prop 65 and EU standards Handcrafted in Brazil