Gem & jewelry cleaner (#651) is our Number one seller to professional jewelers and customers all over the United states. Utilizing a gentle and non-toxic formula, this liquid cleaner removes dirt, fingerprints and build-up from hard to reach settings of your favorite fine jewelry. For use on Gold, silver, Platinum, diamond, ruby, sapphire, topaz, Amethyst, aquamarine, GARNET, peridot, and other non-porous precious and semi-precious gems & jewelry.