These nasturtium earrings are cast in bronze with a trio of mixed metal finishes, including Michael Michaud's signature green hand patination, gunmetal and 24kt gold plating. The wires are 925 Sterling silver with a 24kt gold plating. This unique jewelry is made by creating molds directly from botanical elements in a process similar to lost-wax casting. While traditional lost-wax casting begins with a hand-carved model of wax, Michael Michaud instead uses an actual leaf, branch or flower in place of the wax model. Michael Michaud Jewelry is handcrafted in New York, NY, and is renowned for its beauty and workmanship. Measures 1.15 x .8 in.