I am wary of the ammonia in Windex reacting with the rhodium plating. So I use Dawn Direct foam dishwashing detergent. Pump a tiny bit on, rub around with my fingertips, and rinse in warm water. I just cleaned my faux leather 16" necklace this morning. I wear it while lifting weights, so it gets really grimy. (Weird, I know, but I have to wear something. I can't be completely jewelry-less).