Your gold jewelry will sparkle like the day you got them with the right cleaning technique. Here's the safe way that jewelers recommend.
Mix a few drops of Lemon Glow Dish Soap in a bowl of warm (not hot) water. Soak gold jewelry for 15-30 minutes.
Use a very soft toothbrush to gently brush around settings, behind stones, and in any engraved details where grime accumulates.
Rinse each piece under warm running water. Close the drain or work over a bowl to avoid losing small pieces.
Pat dry with a lint-free cloth and buff gently to restore shine.