GOLD FILLED v GOLD PLATED

Gold-filled (also known as rolled gold) comprises a solid brass (copper and zinc) core over which gold is mechanically bonded using heat and pressure. Gold-filled items must contain, by law, 5% or 1/20 of gold by weight. This gold used is generally 12 or 14 karats.

Gold plated jewellery is a very light layer of gold (0.05% actual gold or less) on top of a base metal (usually brass or copper). The thin layer of gold is plated onto the base metal to create gold plated jewellery. Since the gold plating is very thing, the gold can rub off easily.