Sterling Silver Round-Shaped Amethyst and White Topaz Ring Whether it is her birthstone or simply her favorite color, the pretty purple amethyst stone on this ring--set in prongs decorated with white topaz--is sure to become a quick favorite. Crafted in .925 sterling silver Amethyst is February's birthstone. The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture. Imported