True polishing can only be done by professionals with specialized tools. But deep cleaning at home can often bring back the sparkle and desired look of your stone. To do so, use a soft-bristled brush, warm water, and mild soap to gently clean the gemstone. A soft cloth can be used to dry and buff the gemstone after cleaning. For gemstone rings, buyers should take care to avoid exposing the gemstone to harsh chemicals or abrasive materials that can damage the stone. Read our Care Instructions for more information.