Sterling Silver, Gold and Platinum
The regular use of chemical liquid jewelry cleaners is discouraged, as they can result in a discoloration of the metal. Always remove your jewelry before swimming, showering, or cleaning with household chemicals, especially ones containing bleach or ammonia.
Sterling silver typically requires minimal care. Over time, your jewelry may tarnish. This is a result of constant contact with your skin's natural oils, make-up residue, dirt, and air. When it will not be worn for a extended amount of time, store your jewelry in a container or jewelry box. Leaving silver out in open air will promote discoloration and tarnishing. The safest, and most effective way to preserve the bright and shiny finish on your sterling silver is to wash regularly with soap and warm water then wipe gently with a soft polishing cloth.
Care for gold and platinum is similar to silver in most ways, though these metals will scrath less and tarnish much slower. 14K white gold needs a special plating know as Rhodium to achieve it's shiny, white luster. Rhodium is an intensely white metal closely related to platinum, with higher reflective characteristics, producing a mirror-like sheen. Rhodium, like all plating material, eventually wears off. Expect to have to re-apply this finish every six months to a year, depending on wear.