When should I clean my jewelry? by Emylee To keep your gems sparkling, clean them when dust and fingerprints dim their brilliance. For everyday cleaning, we recommend mild dish soap and warm water, using a toothbrush to scrub behind the stone where dust can collect. Gemvara offers free cleaning and polishing within the first year of purchase - click here to request a cleaning repair service. For cleaning instructions for specific gemstones, visit our Gemstone Library.