All Susan Shaw jewelry is either 24Kt handcast gold plated or handcast sterling silver plated. Handcasting is a plating method done by hand. This method produces the most consistent and highest quality plating possible and is far superior to standard machine plating. All pieces are handcast with three coats of 24Kt gold or sterling silver. All items are plated over a lead-free, nickel-free base metal. Made in the USA