When dressing place the jewellery on last to prevent from harsh chemicals (eg: perfumes, hairsprays, etc).
Factors such as extreme heat including sunlight and chlorine will not prolong the life of your jewelry. It is highly recommended that you do not wear the jewelry in water as it can also tarnish the appearance of the jewellery.
The plating of items will fade overtime. Plating fading is inevitable and unavoidable when wearing costume jewelry.