Our collection of August birthstone jewelry features the vivid grassy green peridot, which is the modern August birthstone as well as the gem considered an ideal gift for the 16th wedding anniversary. The French were the first to call this stone peridot in the 18th century. Peridot is a gemstone for prosperity, fame dignity and protection, and was treasured by Sultans. Additional August birthstones are ruby, alexandrite, sapphire, carnelian and sardonyx.