dimond-care Diamonds naturally attract grease and dust particles, and require periodic care to maintain its fire and brilliance. The easiest and best way to clean your diamond is to use a soft brush, mild PH neutral soap and warm water. Once you have gently brushed the diamond rinse thoroughly with clean warm water, then wipe and buff your diamond with a soft cloth. Diamonds should be stored separately as they can scratch other jewelry as well as each other.