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Pearls are an organic gem,
created when an oyster covers a foreign object with beautiful layers of
nacre. Long ago, pearls were important financial assets, comparable in
price to real estate, as thousands o f oysters had to be searched for
only one pearl. They were rare because they were created only by chance.
Today pearls are cultured by man: shell beads are placed inside an
oyster and the oyster is returned to the water. When the pearls are
later harvested, the oyster has covered the bead with layers of nacre.
Most cultured pearls are produced in Japan. In the warmer waters of the
South Pacific, larger oysters produce South Sea cultured pearls and
Tahitian black cultured pearls, which are larger in size. Freshwater
pearls are cultured in freshwater mussels, mostly in China.
Cultured pearls and natural pearls can be distinguished from imitation
pearls by a very simple test. Take the pearl and rub it (gently!)
against the edge of a tooth. Cultured and natural pearls will feel
slightly rough, like fine sandpaper, because of the texture of natural
nacre. Imitations will feel as smooth as glass because the surface is
molded or painted on a smooth bead.
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Pearls: Very
Cultured