You can use a non-abrasive cleaner to maintain your gold and platinum jewellery. Use a soft cloth to polish your gold reguarly and boutique it separately from other metals to avoid discolouration. Both 18 carat white gold and platinum rings may need re-polishing depending on the level of wear and tear. Do not let your gold jewellery come into contact with household bleach as this will cause the gold to discolour and possibly even disintegrate. Try to avoid wearing platinum and white gold rings side by side because the softness of each metal differs. To avoid your gold tarnishing, always remove jewellery when you go swimming - the chlorinated water can damage the surface of the metal. It is also recommended that you remove your gold when applying perfume and hairspray and using cleaning products. It is recommended that you do not wear your gold or platinum jewellery whilst carrying out hard labour work as precious metals can scratch and dent when they come into contact with harder elements.