14Kt Gold-Filled as well. Gold-filled is actual 14Kt gold that is bonded onto a core base metal and then rolled out until 1/20th of the piece is actually 14Kt. Gold. This creates a piece that contains much more Gold than Goldplate, and will last quite a long time. Earrings may last a lifetime, although necklaces might show some wear after 10-20 years, depending on how often they are worn.