Opal gemstones are unlike any other thanks to their brilliant and unusual play of color. Revered as a symbol of hope, fidelity and purity, opal was dubbed the Queen of Gems by the ancient Romans because it encompasses the colors of all other gems. Opal jewelry takes advantage of the opal's color play and ability to disperse light into flashes of rainbow color. If you're looking for a shimmering, iridescent piece of jewelry, an opal ring, pendant, earrings, or bracelet is sure to delight. As the birthstone of October, opal jewelry makes the perfect gift for those celebrating October birthdays.