You may wish to add additional gemstones of children, grandchildren or other loved ones. With our briolette charms, you can add as many as you like! They are easy to attach or detach. Length: 1" Metal: Sterling Silver. Materials: Garnet, Amethyst, Aquamarine, Crystal, Emerald Quartz, Mother of Peal Quartz, Carnelian, Peridot, Sapphire Quartz, Pink Tourmaline, Yellow Topaz, Turquoise.