Unique and lovely vintage glass Opals have lots of fire and shine!Stone Length: 1 inch (2.5 cm)Total Earring Length: 1 1/2 inches (3.8cm)Setting Material: Nickel Free Cast Brass, your choice of Gold (shown), Antique Gold, Antique Silver, or Silver plating. These settings have sturdy, secure lever-back earrings so you can be sure they won't slip out while you are wearing them.