Friendship, love and loyalty are represented by this historic celtic design. A Fire Opal claddagh ring with your birthstone or favorite color makes it even more significant. This birthstone of October embodies the orange and red colors of a warming fire. The fiery sparkle of this gem makes a fire opal ring become the center of conversation One of the oldest gemstones in history, garnet is the birthstone of January. Garnet rings have been popular since Victorian times, and are treasured for their deep red color.