When you think gold chain, you might think Rocky Balboa or Tony Manero in the 1970s. You'd be right, but in fine jewelry, a gold chain has traditionally been used as a secondary element to carry a beautiful pendant, whether it's a sapphire in a gold setting or a coral cameo. Today, gold chains attract attention all by themselves—long strands like the ones worn by Stallone and Travolta can weigh 25 grams or more.