Fine jewelry is delicate, and should be cared with love. To keep your jewelry in optimal condition, please do the following: 
Leave your jewelry safe at home while at the gym or any related activity. 
Take off your jewelry before showering, wearing lotion, perfume, etc. 
Keep your jewelry far from chemicals. 
Make sure your jewelry is always laid flat. All necklaces should be clasped when not worn, to assure chains are not tangled.