Set in 18K Gold coated over Stainless Steel • Hypoallergenic • Water resistant • Nickel and Lead Free • Tarnish Free • Handmade with a high-quality finish and attention to detail PVD uses a vacuum process that provides an extremely durable and tough coating. PVD coatings bond at a molecular level and offer superior wear, corrosion & chemical resistance. Excellent adhesion & uniform coating. Brilliant embellishing finish and high hardness.