The surface of a pearl is not as hard as those of other types of jewelry. If pearls come into contact with these objects, they can scratch very easily.
Water is not good for pearls, to say nothing of soaps, bleach, and other substances that may happen to be present. On a related note, it is wise to carefully wipe your pearls with a soft, dry cloth after wearing. Even the most fastidious wearer cannot prevent a bit of natural perspiration, and taking care to keep the pearls dry will preserve their beauty.
It would not be an exaggeration to say that vinegar and acidic fruit juices are the natural enemies of pearls. If these liquids should come into contact with the pearls, clean the pearls immediately with a soft, dry cloth to avoid discoloration.
As with vinegar and fruit juice, pearls are very weak against cosmetics. In case of direct contact, clean the pearls at once--in this case with a moist cloth--and wipe dry as usual.
Pearls do not do well under bright light, be it direct sunlight or fluorescent light. They will discolor , so please take care to keep them in a case or drawer, safely out of the light.
The above five points cover the vital aspects of pearl care. One last thing to remember: it would be well to change the strings of pearl necklaces once a year.
We also undertake polishing works for all gold, forming, beaded jewels.