Silver has been used in jewelry since about 3000 B.C. in ancient Egypt. Pure silver is too soft to be used in jewelry. Sterling Silver is 92.5% pure, and is usually marked “Sterling” or “.925”. Copper is the most common alloy for silver. Silver is less expensive the gold or platinum, but is not commonly used for mounting gems, except for some semi-precious gems. In recent years, Sterling silver has become more popular in fashion jewelry such as earrings, necklaces, bracelets, etc.