Keep them stored safely in an enclosed space, dark, like a drawstring bag or jewelry box. Air and humidity can cause the metals that the jewelry are made of tarnish. Although precious metals can be polished back to their original luster, non-precious metals only covered in a polished metal case causes the copper underneath to show through. If you buy your jewelry from a pawn shop, check their qualifications.Find out if they have experience with games, certifications, or if they are working with gemologists. Should pawn shop that works with these items on a regular basis may be eligible to evaluate and sell jewelry at appropriate costs. Metal allergies can make wearing any jewelery, in particular wrist watches, itchy and painful. A simple way to alleviate the itching that some non-precious metals (common in many cases watching) cause, change your watch band to one made leather or cloth and then apply a coat of clear nail polish to the back of your watch.The nail polish, although not permanent, it's easy to readjust when necessary and protect your skin from being in direct contact with the metal case of the watch. If the new watch band buckle metal, do not forget to put a layer of nail polish as well. even a small bit of metal can cause some discomfort for those with severe sensitivity. Ask your vendor how they recommend that you clean your new purchases.However, the pieces of sterling silver jewelry that lasts ages without tarnishing coating expertise. Some types of very classic and affordable jewelery that are available are pearls. These very classic staples to any conclusion. They are available in three types that include natural, imitation and cultured too. There are many colors and variations available such as classic white, pink, gold, black, etc.