What's The Gold Filled ? Gold Filled Jewellery is a solid layer of quality gold heat bonded to an internal jewellers metal.. It has all the great characteristics of solid gold jewellery. It is extermely long lasting and if taken care of will last you a lifetime. Please research Gold Filled Jewellery on the internet to find out more information about this great new product. Do not compare gold filled jewellery to plated jewellery as there is no comparison.