The earrings are made of sterling silver. The onyx measures 35 millimeters long and hangs from a silver ear wire. The silver portion of the earring swirls partially around the onyx. The earrings are 13 millimeters wide. The earrings weigh 6.2 grams. There is a small plastic piece that can be placed on the end of the ear wire if you choose. I will provide a nice earring box.