Just as you would for any other high-valued investments, your diamond should be given the proper attention and care. Diamonds are the hardest naturally occurring material known to men and are extremely resistant to surface damages.
INTA Gems & Diamonds recommend that you remove your jewelry before showers and baths and all household chores in order to minimize surface buildup. However, daily exposure to perspiration, hair care products, household cleaning agents and such will create surface buildup that dulls your diamond. We also recommend that you clean your diamond jewelry periodically to maintain the best brilliance and fire.
The best option is to bring your jewelry in for us to have it professionally cleaned and polished, along with an inspection of the prongs and the security of its setting. Cleaning is also possible at home with a do-it-yourself dipping mixture of 1 part ammonia and 6 parts water.