Add charm to any ensemble with this unique amethyst and glass bead droplet necklace in gold plate. The pretty purple hues exude elegance and sophistication, allowing you to elegantly accessorize any look. Handmade and ethically sourced from Bali. SKU: GP430 Plated jewellery, as the name suggests, has a thin layer of precious metal over a base  metal (ie zinc alloy, brass, stainless steel). The layer of precious metal is usually between 0.175 to 0.5 microns (in comparison, a dollar bill is 200 microns). Since the precious metal layer is very thin, friction between your skin and the plated jewellery can slowly rub off the plating. Also, exposure to water, sweat, soap, perfume and other chemicals can cause the plating to fade.