An inappropriate cleaner may actually damage stones or settings. The simplest and safest way to clean any kind of jewelry is to wash it with warm sudsy water. Prepare a small bowl of sudsy water, using any mild liquid detergent. Soak the piece a few minutes, and then brush it gently with an eyebrow brush or soft toothbrush while holding it under running water. Make sure the drain is closed.
Some people prefer to place jewelry in wire strainer before holding it under running water.
When the piece is clean and sparkling, pat it dry with a soft lint-free cloth or paper towel. Commercial Cleaning Solutions Use commercial jewelry cleaners with caution. Commercial jewelry cleaners are no more effective than the household cleaners suggested above, but they are more convenient. They are normally safe for diamonds, rubies, and sapphires, but may be harmful to some gemstones. Never soak gemstone jewelry in commercial cleaners for more than a few minutes.