We use the term 14 Karat Gold Vermeil continuously in describing some of our findings. Pronounced “vermay” vermeil gold is the official industry designation for a heavy gold application over sterling silver. The term cannot be used to describe gold plating over base metal in which the plating is much thinner. Electroplating over base metal gives you an inferior product that is truly costume jewelry and in most instances will not last. 14 karat gold vermeil has a minimum thickness of 2.5 microns deposited over sterling before it can be sold as vermeil.