An important feature of costume jewelry is that it is designed with different materials. This makes it necessary to consider the kind of materials used on your piece before choosing a suitable washing technique. In a costume jewelry design, there could be a semi-precious stone, glass, or crystal. Choose a cleaning agent that is mild enough not to harm even the most sensitive of the materials used on the piece. A safe choice is a mild detergent with warm water.
Apply the liquid solution to a soft brush or cloth and gently rub the piece. Concentrate on the crevices, links, and corners of the piece as most dirt hides here. It is not wise to soak the piece in the jewelry cleaner. Soaking can weaken any adhesives used in the jewelry. Use fresh water to rinse and wipe dry with a clean cloth before storing.