It is also important that jewelries are stored in separate containers that are soft, specifically made for storing them, as to avoid scratching each other.  And that after use, wiping them with a soft, damp cloth is good.  If you are looking for the best and safest to clean your jewelries, then you should try ultrasonic cleaners, they are useful and effective in cleaning intricate jewelries, reaching those areas that cannot be reached by cloth. And for an even and uniform cleaning, the crest ultrasonic cleaner is the best for the job.  Although ultrasonic cleaners are useful in cleaning jewelries such as gold and diamonds, they are not to be used for cleaning pearls, opals and other opaque gemstones, since the cleaner and its solution can dissolve, shatter and crumble them.  In cleaning our jewelries, nothing still beats good old know-how and awareness.