All of the pieces of silver jewelry are sterling silver (unless otherwise noted). Sterling silver pieces will usually have the stamp "925" on it which means it contains 92.5% pure silver. Other alloy metals are added to make the silver stronger as pure silver is very soft and not usually used in making jewelry. Some pieces will not have the 925 stamp because they are very small and there is not enough space (for example earrings), or because the only place to put the 925 stamp would take away from the beauty of the piece.