EARRINGS WITH DIAMOND:
Diamond earrings become dull and dirty through frequent wear. They pick up oil from your skin and hair, causing the metal to become worn and the stones to lose their luster. Luckily, many home products will restore the shine to your diamond earrings. For more intense grime, consider having your earrings professionally cleaned.
1) Buy a jewelry cleaning kit. These kits contain solution designed for cleaning earrings. They are specifically designed for cleaning earrings, so you will know the product won't harm your jewelry.
- Find a special cleaning solution at a jewelry store, state fair, department store, drugstore, or multipurpose store. Look at the instructions on the back of the bottle to ensure that the solution is safe for diamond jewelry.
- Pour a small amount of this solution into a bowl. Soak your earrings in the solution overnight. Rinse the earrings with warm water. Dry and polish with a lint free cloth. Follow the instructions on the back of bottle instead of those listed above, if they differ.
Get the right brush and cloth. You need to use a brush that has soft bristles. This is really important. If you use too harsh of a brush, it could damage the jewelry. And you need a cloth that will clean the earrings gently.
- All you need is a toothbrush, but pick one with soft bristles. Make sure you don’t use a wire brush or a brush with harsh bristles, as this could damage the setting.
- A child’s toothbrush would be a good choice because the bristles are really soft. You can also buy brushes specially designed for cleaning jewelry online or in stores.
- Don't fall for the tip that you should use toothbrush to clean the jewelry, though. It can be too abrasive. There are better household products to use. 
- Use a microfiber hand towel to dry the earrings. These are softer and will help you clean the earrings gently.
- You also want to make sure you only use soft bristles on earrings with gold settings. If your diamond has a fragile setting or is an antique, you might want to skip the brush completely. 
Pick a flat surface. You don’t want to clean diamond earrings near the sink or chances are pretty good your earrings could end up in the drain. You think it won't happen, but ask any plumber: It often does!
- Choose a table instead or any flat surface that is not near a sink. You need enough space for a bowl and towel.
- You will also need a bowl or cup to put the earrings in. You may want to use rubber gloves, depending on the toxicity of the solution you choose.
2) Use dish soap. If you don’t have a jewelry cleaning kit, you can make your own solutions with many different home cleaning products. You can use regular dish soap to clean the dirt and oils off diamond earrings. 
- Mix together 1 cup of lukewarm water with 1 teaspoon of mild dish soap. Stir the water with your fingers until you see bubbles. Make sure the dish soap doesn’t have perfume or dye in it or it could damage the earrings. Soak the earrings for three to four minutes, so that any dirt or oil loosens up.
- Then take a soft toothbrush and wet it in the mixture. Softly brush the diamonds. Let the earrings soak another 1-2 minutes. Then remove the earrings, and place them on a paper towel. Take a bowl of clear water and rinse the earrings off. Don’t rinse them under a faucet or you might lose them down the drain.
Try Windex. There are many different household products that you can use to clean diamond earrings. Windex works, too. Or you could soak the earrings in mild liquid detergent. Pick one with sodium lauryl ether sulfate.
- Spray a toothbrush with Windex. Then, brush the diamonds softly. 
- Be gentle, and use a small, soft brush. Then, rinse the earrings with water and wipe them dry with a soft cloth.
Use ammonia. It sounds like it might be too harsh, but it's one of the most common ways to clean diamond earrings.
- Mix one part ammonia with six parts of hot water. Do not use hot water, though, if there are other gems in the setting. It could damage them. Put the earrings in the solution for 20 minutes. Use rubber gloves with this solution.
- Next, put the earrings into another bowl with warm water. Add a teaspoon of dish soap to the bowl. Scrub the earrings with a soft toothbrush or jewelry brush. Rinse the earrings in warm water. 
Soak the earrings in club soda. You can make your diamonds – and other gems – look brighter if you soak them overnight in club soda.
- Simply fill a glass full of club soda, and then put diamonds or other gems (like rubies and sapphires) in the glass. Let it sit overnight.
- Another technique involves using a denture tablet to give your diamonds some sparkle. Put the tablet into a cup of water, and then put your diamond earrings into the cup for several minutes. Then, rinse the jewelry. 
- Remove any noticeable clumps of dirt or cloth fibers. Carefully use a toothpick to remove dirt lodged in between the metal prongs and the diamond. Gently remove any cloth fibers that get stuck in the setting using tweezers.
Try soap and water for a simple solution to a little oil or grime. If you don't have anything else on hand, you can try the obvious: Soap and water.
- Combine 1 part mild dishwashing detergent with 3 parts warm water in a small bowl. Dip a soft bristle toothbrush, soft cloth, or cotton swab into the soap mixture.
- Gently scrub the stone and the metal backing. Alternatively, you can soak your diamond earrings in this solution up to 30 minutes.
- Remove the earrings after soaking them and rinse them under warm water. Dry and polish the earrings with a lint free cloth.
Try Vodka. Soak your earrings in vodka if no other materials are around.
- Fill a shot glass with vodka. Drop your earrings into the glass and let them soak for a minute or two. Remove the earrings and rinse under warm water.
- Dry and polish them with a lint free cloth.
- Note that some of these solutions should not be used on earrings or pieces containing gemstones other than diamonds. Vodka, for instance, will damage any gemstone that is not a crystal.
- Don't do any of this over a sink with an open drain, or you may find yourself calling a plumber to retrieve your precious item from the trap!
- Err on the side of caution whenever you clean your jewelry. Do not over-soak your earrings or scrub them too roughly.
- Do not dry with a towel or cloth or anything at all, just let them air dry!
- The best way is to simply grab a tube of toothpaste, put a tiny bit on an old toothbrush or you should consider buying one for cleaning your diamond earrings only, and just scrub gently over the earrings and rinse under water then let them dry themselves.
CONTENT FROM: "How to Clean Diamond Earrings." Wiki How. N.p., n.d. Web.