Cultured pearl is a gemstone described as produced through an artificial process that mimics the organic process by which a natural pearl is created. An irritant such as a bead, grain of sand, or piece of mantle tissue is inserted by human intervention into the body of a mollusk, and becomes the nucleus of a pearl once that mollusk secretes nacre to cover the irritation.
Ref: 123980/2006-10-18

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Cult (Cult refers to (also called new religious ...)
Bead (Bead is described as the stationary platen of a ...)
Gemstone (Gemstone (Gem) is described as precious or ...)


List of books: Cultured,pearl

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