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  2. Cultured pearl - Wikipedia

    en.wikipedia.org/wiki/Cultured_pearl

    White pearl necklace. A pearl nucleus or a bead for cultured pearl is a sphere (usually) or other shape (occasionally) formed only by cutting and polishing a nacreous shell used to accommodate the nacre secreted from a graft of mantle tissue, that eventually forms the centre of a beaded cultured pearl. [2]

  3. Cultured freshwater pearls - Wikipedia

    en.wikipedia.org/wiki/Cultured_freshwater_pearls

    Cultured freshwater pearls are pearls that are farmed and created using freshwater mussels. These pearls are produced in Japan and the United States on a limited scale, but are now almost exclusively produced in China. The U.S. Federal Trade Commission requires that farmed freshwater pearls be referred to as "freshwater cultured pearls" in ...

  4. Pearl - Wikipedia

    en.wikipedia.org/wiki/Pearl

    The original Japanese cultured pearls, known as akoya pearls, are produced by a species of small pearl oyster, Pinctada fucata martensii, which is no bigger than 6 to 8 cm (2.4 to 3.1 in) in size, hence akoya pearls larger than 10 mm in diameter are extremely rare and highly priced. Today, a hybrid mollusk is used in both Japan and China in the ...

  5. Unionida - Wikipedia

    en.wikipedia.org/wiki/Unionida

    Cultured pearls have a similar color to natural pearls as the nacre is laid down by the mantle of the freshwater mussel, and thus the color of the pearl may be species specific. Exportation of freshwater mussels for the use in the Japanese cultured pearl industry has supported the North American freshwater mussel fisheries since the late 1950s.

  6. Baroque pearl - Wikipedia

    en.wikipedia.org/wiki/Baroque_pearl

    Cultured saltwater pearls can also be baroque, but tend to be more teardrop-shaped due to the use of a spherical nucleation bead. Nowadays, most jewelry stores selling baroque pearl jewelry offer cultured freshwater pearls rather than wild freshwater pearls, which are significantly more expensive.

  7. John Latendresse - Wikipedia

    en.wikipedia.org/wiki/John_Latendresse

    John Robert Latendresse (July 26, 1925 in South Dakota – July 23, 2000) [1] was an American collector, known for being the "father of American cultured freshwater pearls". [2] He left home at 13, and lying about his age, joined the U.S. Marines at 15, serving 38 months in the South Pacific during World War II .