Delicate Jewelry Cleaner This specially formulated jewellery cleaner is designed to bring out the brilliant best in a wide range of precious and semi-precious gemstones, from the vibrant hues of amethyst, aquamarine, citrine, garnet, peridot, tanzanite, topaz, tourmaline, and tsavorite, to the rich depths of amber, ivory, jadeite, lapis lazuli, malachite, onyx, and opal.Even delicate pearls and costume jewellery, including your cherished Pandora bracelets, can benefit from this gentle yet effective cleaning solution. A handy cleaning brush is included to help you reach every nook and cranny. As a special note for pearl owners, those strung on silk should be allowed to dry flat on a soft cloth for up to a week to ensure the silk thread retains its strength and integrity.