You’ll want to clean your grillz how you would clean other pieces of diamond or gold jewelry but more often. Although you should clean diamond rings occasionally, you should clean your diamond grillz daily since they go in the mouth. Just like dentures, your grillz should be kept as sanitized as possible. Use a soft cloth or brush and soapy, warm water to clean your grillz. Don’t use detergents because they may harm your mouthpiece’s gemstones or metal. Your grillz maker can also offer suggestions for how best to care for your unique set of teeth.