What is Gold Filled (rolled gold) and Whats the difference between it and Gold plated?
Gold Filled means that a layer of gold has been bonded onto another material, usually brass, by treating the metals with heat and pressure bonding a thin layer of gold onto the top of the core metal. Jewelry made of gold filled wire or sheet can withstand more wear than gold plated, but still can scratch, and cannot be hammered, or the underlying metal will show through. Gold filled wire is used for the properties of gold (color, the fact that it does not tarnish).