SilverMate®

SilverMate liquid silver cleaner will leave a professional-quality shine, and can be used to clean anything from sterling silver, silver-plate, antique silver, gold, diamonds, jewelry, gemstones, pewter, chrome, more. It is non-abrasive, with no rubbing, scrubbing, or buffing required.
_{*Never put pearls or any jewelry encrusted with semiprecious stones i.e. turquoise, rubies, onyx, sapphires, lapis, and others in this cleaner. It can bleach their color.}