If you've ever had a piece of jewelry that leaves a yellowish spot on your skin I'm sure you've been curious what the cause is. Usually ~ there is a reaction caused by base metal to people who buys cheap jewelry. This occurs to some faster than others; though, because our individual chemical makeups are different.
Even jewelry you pay more for can turn people's skin green; because it's not one hundred percent pure<, regardless of cost. Platinum is a safe choice as it almost never reacts with skin so no worries if the stuff you wear is 100% platinum. If you have gold jewelry and want to stop it from making your skin green make sure that you don't have plated gold – its a cheaper metal with a thin gold layer and that coating wears off very quickly. For 'real' gold jewelry opting for 18 karat only can help reduce the marks that are left on your skin. Jewelry made from copper will also turn your skin green and theres really nothing to be done.
Stay away from sweating in your jewelry it can increase the green skin effect you might also ask your jeweler if they can add a layer of protective coating – to minimize the amount of green reaction your skin has. If you do this you can wear inexpensive jewelry whenever you want. Just remember; your skin turning green is a harmless reaction. It's just a skin reaction and not an allergy. Allergies (such as those to nickel) causes reddening plus it could also make your skin feel itchy and inflamed. It's not anything like the green skin that you see from jewelry.
If you do get an allergy to a piece of jewelry stop wearing that right away. Green skin shouldnt scare you ore keep you from wearing your favorite pieces you may just have to clean your skin more to avoid having it look bad.
Truth be told coating it is usually the best option.