Natural and Lab-Created AmethystIs purple your color? If so, you'll love our natural and lab-created amethyst jewelry such as amethyst rings and amethyst necklaces from Kay. Amethyst is the birthstone of February, making natural and lab-created amethyst jewelry a special gift for those who were born in this month. Natural and lab-created amethyst is not only a sight to behold, but also the color of royalty and a traditional symbol of peace, tranquility and protection. Available in shades of purple ranging from a light lavender to a deep, dark and royal purple, natural and lab-created amethyst is an attractive gemstone in virtually any setting, including white gold, yellow gold and rose gold.