by Dr. L. E. Cartier, first published in Facette 23 (February 2017) The South Sea pearl oyster Pinctada maxima is known to produce white,...

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Q: What is a pearl made of? A pearl is a natural gem created by a living organism. When a...

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Keshi (ケシ), meaning poppy seed in Japanese, was originally used in Japan for very small-sized natural pearls, namely the very...

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During Christopher Columbus’s third (1498) and fourth (1502) voyages to the New World, he repeatedly encountered native people adorned with natural pearls. 
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Few people outside the gem industry realize the true nature of a cultured pearl’s journey.
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