Get the look of a professionally cleaned diamond at home using ordinary household products. Toothpaste has a soft, abrasive texture, yet is gentle enough to clean any diamond. The key to cleaning diamond rings with toothpaste is using a soft-bristled toothbrush, such as a baby toothbrush. Cleaning diamond rings routinely with toothpaste will maintain the luster and brilliance of a professionally cleaned diamond; keeping you from having to pay for a professional cleaning.
Fill one bowl with hot water.
Fill one bowl with warm water.
Place a small amount of toothpaste (not gel) on the toothbrush.
Lightly brush the face, sides and underneath of the diamond. Pay careful attention around prongs and the mount; these areas require more cleaning.
Place the toothbrush in the warm water occasionally to moisten the bristles.
Place the cleaned diamond ring in a bowl of hot water to rinse it thoroughly.
Dry it with a soft cloth.