For a more thorough cleaning, you can dip your chain and charms into a jewelry cleaning liquid (the letters will stay blackened in the liquid as well) such as Sunray Liquid Jewelry Cleaner and then polish with a soft cloth. Sunray Liquid Jewelry Cleaner is safe even for pearls - this ready-to-use cleaner includes 8oz. of solution, jewelry holding basket and soft-scrubbing brush. The all-natural solution removes oils, dirt and cosmetics.
