Want to add a charm and a birthstone to a necklace? All components are made of sterling silver and a Swarovski crystal/pearl, unless a freshwater pearl is selected. The drop-down menu includes the birth months, birthstones and additional options. All of the charms in this piece are made of sterling silver. This piece will come with a ring ready to slide on your favorite chain. All orders include first-class worldwide shipping (expedited shipping options available). All orders are shipped in a black velour bag - ready for gift giving.