Handmade and ethically sourced from Bali. Size: One Size SKU: GP433 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). To take care of plated jewellery, you should: Avoid getting it wet with water, soap, perfume, lotion, sweat and other chemicals.