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Article
The ABCs of Pearls Reveal Fascinating Aspects of Gems from the Deep

“The A-Z of Pearls”, with at least one pearl-related subject for each letter of the alphabet, was presented in Thailand recently.

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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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Non-nacreous Pen Pearls
Observations on Pearls Reportedly from the Pinnidae Family (Pen Pearls)

Examines the internal structure, chemical composition and spectroscopic features of 22 pen pearls.

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Giant Clam Pearl
A Large Baroque Tridacna Gigas (Giant Clam) Pearl

This giant clam pearl was noteworthy for its size and interesting colouration, and its pronounced banding when viewed with transmitted light.

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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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Article
Paspaley: Inside an Exclusive South Sea Pearl Auction

Fine-quality South Sea cultured pearls can be seen in the world’s fashion capitals, but they all start their journey to market at the auction. GIA offers a rare look inside one of the biggest.

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Article
Hong Kong Jewellery Show: The World’s Largest Assemblage of Cultured Pearls

A preview of the Hong Kong Jewellery Show, taking place Sept. 11–17.

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Strands of Tiny Akoya Keshi Pearls

Tiny pearls only 0.7–0.9 mm in diameter presented in Tuscon by the Japanese Pearl Exporting Company.

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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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Abstract Header from the 2009 issue of Gems & Gemology
Abstracts; Autumn 2009

This article, from the Autumn 2009 issue of Gems & Gemology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemology.

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