How to care for your diamond ring… simply put
The first thing to know, diamonds are not invincible. They can be damaged when hit or dropped. You must be cautious of your piece and take it off during the proper times (heavy lifting, baking, etc.).
In order to keep your ring clean and free of dirt and oil. You can soak the ring in a small glass, filled with warm/hot water and dish soap (palmolive). Let the ring soak for about 30 minutes or so and then remove it. You can purchase a small soft brush (kids toothbrush) to clean the diamond softly. Rinse the ring in warm/hot water again. This will keep the ring clean and free of buildup.
I do recommend having the ring checked once a year to maintain the durability and security of the precious stone/s. Most of your online vendors should offer this type of service.