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Atypical Freshwater Cultured Pearls with Damaged Nacre

The New York lab received four baroque-shaped pearls with damaged nacre layers

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Non-nacreous Pearls
Natural Pearls Reportedly from a Spondylus Species (“Thorny” Oyster)

A rare look at natural pearls from a known Spondylus species, commonly called “thorny” oysters.

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Enormous South Sea Cultured Pearl Filled with Cultured Pearls

An unusually large cultured pearl was filled with multiple cultured pearls, perhaps after the emergence of an original single-bead nucleus.

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