These earrings are made from beautiful agate geodes. The geodes are cut in half to create these earrings. The earrings are not exactly the same but are made from the same geode so they match as closely as possible. The geode are plated with gold on the edges and back. The earrings come in different colors from blue to black to red to brown to grey. The earrings are are about 5-20mm but can be smaller or bigger depending on the geode size.