Connoisseurs Jewellery Cleansing Foam is a highly effective all purpose product whose foaming action safely melts away dirt and grime in no time. The product is non-toxic and biodegradable. Cleans all jewelry: diamonds, gemstones, pearls, gold, platinum, and costume jewellery. To Use: Apply foam directly to jewellery. Let soak for 30-60 seconds. Work into difficult places if needed with a soft brush (not included). Rinse thoroughly with warm water and dry. Repeat if needed