Nothing sparkles like a diamond, whose hardness tops the mohs scale at 10 to make it a uniquely durable stone as well. Sharp tips/corners, like those on princess or marquise cut diamonds, are still susceptible to chipping, so be sure your diamond setting securely protects the tips. To maintain your diamond's sparkle, you'll want to take regular steps to keep it clean: try not to handle it excessively, as natural oils as well as lotions can collect dirt and other materials. To clean slight buildup, apply a mixture of mild dishwashing soap and water with a soft toothbrush, scrubbing gently. Whether cleaning or during daily wear, avoid harsh chemicals such as bleach or chlorine to avoid damage to the ring setting.