To keep your platinum jewelry looking as good as new, you should clean your jewelry regularly. To clean your platinum jewelry, you could use either a jewelry cleaner or you could soak it in a mild solution of 50% ammonia and 50% warm water. Then, you should gently rub the jewelry with a soft cloth. Before using ammonia to clean your jewelry, make sure that you don't have gemstones on your piece since ammonia can damage gemstones other than diamonds. Always ask a professional jeweler what type of solution you should use to clean your platinum jewelry.
Twice a year, you should have a professional jeweler polish and clean your jewelry to remove any scratches. You can take your jewelry to the jeweler more than twice a year depending on the severity of the scratches on your piece or if there's a patina on the surface of your platinum jewelry. A patina is a film that develops on the surfaces of metals which is a result of age, wear and polishing. It's a coating of chemical compounds such as oxides and carbonates that changes the color and texture of your jewelry. A professional jeweler can help to remove the patina from your jewelry and give it a high gloss look.
Store your platinum jewelry in either a jewelry box or a chamois bag. Doing so will ensure that your jewelry piece is not scratched by other jewelry pieces.
It's best to take your platinum jewelry to a qualified jeweler twice a year for inspection. Make sure that your jeweler is trained to resize, adjust, polish, and clean your platinum jewelry.
Avoid wearing your platinum jewelry when you're doing house cleaning with cleaning solutions containing bleach or other harsh chemicals. The chemicals may not affect your platinum jewelry as much but it can discolor the gemstones that are set in your jewelry. You should also avoid doing any heavy work or manual labor to prevent any scratches on your jewelry.