Sterling silver wire is one of the most fashionable choices for up to date jewelry designs. Our sterling silver wire is available in one-ounce spools and is composed of 92.5 percent silver. It comes in both half-hard and dead soft, and in gauges 18 to 30. The gauge number of sterling silver wire is inversely proportional to the thickness, meaning that an 18 gauge wire is thicker than a 30 gauge wire. And because our sterling silver wire is sold by weight, a higher-gauge wire will also have a greater length.