In order to understand how to clean a diamond, you need to understand the way they operate. At the most basic level, a diamond’s surface is just like a bunch of tiny mirrors that pull light into the stone and let it bounce around like a toddler after too much sugar (or me after too much gin). To keep that light bouncing around then, we need to keep all those tiny mirrors clean so that the light can do its job. The problem with this however is that just like me at McDonalds after a night of gin, diamonds LOVE grease. Ridding your diamond of all that grease is surprisingly easy and can be done using items you will find at home, but before you reach for those rubber gloves you need to be aware of a few things.
First of all, if your diamond has any surface chips or cracks do NOT clean it yourself as you might unintentionally make those blemishes worse. Bring it to a professional jeweler to get it cleaned instead! Similarly, if the ring setting has any weak spots (like a claw that looks a bit flimsy or one of the diamonds is moving ever-so-slightly inside the setting) you are better served letting a professional deal with it, as scrubbing the ring might result in a stone popping out and you bursting into actual tears.
Secondly, this cleaning guide is meant only for diamonds because other stones such as rubies and sapphires are much softer than diamonds and can easily be damaged. If your ring has stones other than diamonds in the setting, bring that baby to a professional where it will be treated with the care it deserves. You could even drink gin while you wait.