Gold Filled is a premium jewelry material made by permanently bonding a thick layer of 14-karat gold to a base metal, usually brass, using heat and pressure.
By law, Gold Filled contains 1/20 of its total weight in real gold (5%), which is 15 to 25 times more gold than standard gold-plated jewelry.
This makes Gold Filled jewelry much more durable, more resistant to wear, and able to retain its beautiful appearance for many years with proper care.