Our Jewelry is made of gold-plated steel.Our jewelry is coated with gold using the SAFE method, involving titanium (not nickel). A gold plating method called PVD (Physical Vapor Deposition) is used. The thickness of the gold layer is between 0.03 and 0.05 microns. It is top class stainless steel jewelry with three layers of 18 carat gold plating. It is a perfect quality jewelry, which doesn't tarnish and make our clients happy for a long time. Our jewelry is tested under the burning rays of the sun and in salty water of the Indian ocean. Truly waterproof. Fully hypoallergenic.