These earrings are made with the filigree ancestral technique. handwoven in bronze threads with 24-karat gold plating. The filigree technique is an ancient method of working metal that dates back to the Bronze Age. It involves wrapping fine silver or bronze wire around a core. then hammering and soldering it into place.The result is a delicate and intricate piece of jewelry that's perfect for the modern woman who wants to stand out from the crowd.