vermeil

The Code of Federal Regulations 16, Part 23.5^[2] defines Vermeil: "An industry product may be described or marked as 'vermeil' if it consists of a base of sterling silver coated or plated on all significant surfaces with gold or gold alloy of not less than 10 karat fineness, that is of substantial thickness and a minimum thickness throughout equivalent to two and one half (2½) microns (or approximately 1/10000ths of an inch) of fine gold."