To preserve your jewellery, take it off before strenuos activities like gym, washing hands or using chemical.
Avoid lotion, perfume, hair spray or other cosmetics to come in contact with the jewellery.
Be sure to take off your jewellery before sleeping, showering, swimming, sports activity or any activity that requires contact water or moisture.
When not worn, jewellery should be stored in soft pouch seperate from each other or in a fabric lined case with compartment/divider to prevent damage from metal to stone contact.
The gold plating on jewellery can wear down in time depending on the atmospheric humidity and its usage.
Silver and gold plating tarnishes when exposed to air, do store your silver jewellery in plastic ziplock bags to avoid contact with air. 
