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Most gemstones are mined deep from within the earth, but pearls are unique In that they come from the sea. Pearls are created inside the living form, the mollusk, when foreign particles find itself within and shape the "gem" from within the oyster. The particles are actually an irritant to the shell's soft internal surface and the lustrous substance nacre is secreted by the oyster to protect itself. Years of continuous secretion of nacre forms this bewitching gem, the pearl.
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The cultured pearl procedure begins with a surgical transplant of a nucleus bead inside the mollusk's gonad. After the bead is inserted, it secretes layers of nacre around the outside of the surface of the implant and eventually produces the pearl.
Cultured pearls come in various types which commonly include the Akoya, South Sea, Tahiti, Chinese and Japanese Lake Biwa cultured pearls.
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Pearls are so versatile that they look stunning against any precious metals such as sterling silver, white, rose or yellow gold, as well as palladium. You'll come across different colors apart from white or cream that pearl is widely known for. Cultured pearls exhibit more hues than the natural ones ranging from yellow, pink, orange, black, blue, violet and green.