Also called gold overlay, gold filled wire is a great option for making precious gold jewelry without the cost of solid gold. Gold fill is created by using heat and pressure to apply a layer of karat gold to a base of less costly metal. This produces a thick karat gold surface that is 100's of times thicker than a plating! All of our gold fill wire is seamless, which means the overlay continues around the full circumference of the wire. Choose half hard or dead soft 14kt gold-filled wire in 20 gauge to 26 gauge.