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Gem treatment disclosure and U.S. law

In recent years, the obligation to fully disclose all gem treatments has changed from a mere ethical responsibility to a legal one.

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Update on Ammolite Production from Southern Alberta, Canada

There have been a number of changes in Ammolite production from southern Alberta, Canada, since 2001.

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Gem Localities of the 1990s

The 1990s saw growth in gem exploration, production and marketing worldwide.

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

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

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Abstracts; Summer 2000

This article, from the Summer 2000 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

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Jewellery of the 1990s

This article provides an overview of the many changes that took place in how jewellery was designed, manufactured and marketed during the last decade.

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Sri Lanka: Expedition to the Island of Jewels
Sri Lanka: Expedition to the Island of Jewels

Offers a first-hand look at Sri Lanka’s mining, cutting, jewellery manufacturing and retail sectors, where tradition and innovation converge.

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Actress models jewellery from Chinese retailer
Exploring the Chinese Gem and Jewellery Industry

Examines China’s eminent role in the gem and jewellery industry, as a manufacturer and a consumer market, and its impact on the global trade.

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Argyle pink diamonds
Exceptional Pink to Red Diamonds: A Celebration of the 30th Argyle Diamond Tender

Describes the extremely rare polished pink diamonds from Australia’s Argyle mine that have been sold for 30 years through invitation-only tenders.

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Yellow diamond 17.88 ct., in tweezers, in front of selection of white octahedra, 34.11 ctw. These diamonds came from Kao Mine, Lesotho.
Rough Diamond Auctions: Sweeping Changes In Pricing and Distribution

Examines the growing percentage of rough diamonds being sold through auctions, a shift that has caused price volatility while opening up supply to more manufacturers and dealers.

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