Diamonds are also susceptible to damage from an impact which might cause them to chip or crack. Put jewelry on after you apply hair spray or cosmetics. Chemicals present in either may cause damage, especially to cultured pearls. Wipe your pearls with a soft chamois or flannel cloth after each wearing to remove your skin's oils and salts. A very few colored gemstones, such as kunzite, may fade when worn in sunlight or in a tanning booth.
Few watches are waterproof, though many are water resistant.
If moisture or dust has penetrated the case of your watch, have it checked only by an authorized technician. Attempts by an untrained repair person may seriously damage the watch and invalidate factory warranties. In most cases, routine home care of your fine jewelry supplemented with periodic care by your American Gem Society jeweler means a lifetime of pleasurable wear. Regular cleaning of your gemstones keeps them shining and beautiful. A mild soap and water solution used with a soft brush is effective for many home jewelry care needs.