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Pearl

Perfect shining spheres. Lustrous baroque forms. Seductive strands, warm to the touch. Pearls are simply and purely organic.

Pearl
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Research

Cultured Pearl Farming and Production in the Federated States of Micronesia

The current production of cultured pearls from the black-lipped pearl oyster (Pinctada margaritifera) in the Federated States of Micronesia includes mostly beaded as well as blister and nonbead-cultured pearls in a wide array of colors.

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Summer 2012 Gem News International

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Update on the Identification of Dye Treatment in Yellow or “Golden” Cultured Pearls

Dye treatments in yellow or “golden” cultured pearls have improved to the point that some samples show little surface evidence.

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Gem Localities of the 2000s

The past decade saw some impressive discoveries of diamonds and colored stones.

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The Color Durability of “Chocolate Pearls” by Ballerina Pearl Co.

Seven Chocolate Pearls supplied by Ballerina Pearl Co. and 12 untreated Tahitian cultured pearls (for comparison) were exposed to conditions of consumer care and wear.

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Identification of “Chocolate Pearls” Treated by Ballerina Pearl Co.

Treated cultured pearls with a “chocolate” coloration have entered the market from several sources.

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Cultured Pearls from the Gulf of California, Mexico

This article provides an overview of the history of natural and cultured pearls from Mexico, describes pearl culturing at the Guaymas farm, and focuses on the properties of bead-nucleated cultured pearls from P. sterna.

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Identification of Yellow Cultured Pearls from the Black-Lipped Oyster Pinctada Margaritifera

Although the Pinctada margaritifera oyster usually is associated with the black pearls cultured in French Polynesia, it also can produce attractive large yellow cultured pearls, among other colors.

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The Current Status of Chinese Freshwater Cultured Pearls

Chinese freshwater cultured pearls (FWCPs) are assuming a growing role at major gem and jewelry fairs, and in the market at large.

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Characteristics of Nuclei in Chinese Freshwater Cultured Pearls

There has been considerable debate in the gem trade concerning the nucleation procedures being used to grow large round Chinese freshwater cultured pearls.

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Cultured Abalone Blister Pearls from New Zealand

The successful culturing of abalone pearls has been known since French scientist Louis Boutan’s experimentation in the late 1890s, but commercial production has been achieved only in recent decades.

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Pearl Fashion Through the Ages

A history of pearls in jewelry and fashions through the ages.

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