Tag Archives: diamonds

Plate Tectonic Gemstones: Jadeite, Ruby, and Diamond – Robert Stern

Professor Robert Stern provided the chapter members with a a very informative discussion of how gemstones form in a variety of geologic settings. Plate Tectonic Gemstones – Geology 2013 Almost all gems of mineral origin form in the Earth’s crust, with … Continue reading

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17th Century Diamonds & Pearls – Dr. Brenda Foreman

Brenda Forman enlightened the DCGIA Chapter with the history of Diamonds & Pearls in the 17th Century. The 16th century was the time for goldsmiths, where ornate gold work was more important than gemstones. Diamonds were used in a table cut … Continue reading

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National Gem Collection – Some Old & Some New – Jeffrey Post

Dr. Jeffrey Post, curator of the Smithsonian’s National Gem Collection provided an insightful presentation of old and new acquisitions to the collection. The gems and minerals galleries of the Smithsonian’s National Museum of Natural History are among the most visited … Continue reading

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Diamonds & Color: Everything You Ever wanted to know! – Richard Drucker

Richard Drucker, publisher of The Guide, joined a full house of DCGIA members for an entertaining and visually  rich presentation on September 24th. Richard addressed a myriad of topics that ranged from current economic trends to fancy colored diamonds, treatments … Continue reading

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Antique Diamonds – Michael Goldstein

Mr. Goldstein has been in the jewelry industry for over 30 years in the New York City area. He publishes a free price guide to antique-cut diamonds and market updates for this specialized area of the diamond market. He also … Continue reading

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Tucson Panel Report – Friends of DDI

Patricia Syvrud founder and president of Joia Consulting, LLC, was also in Tucson heading up program development for the Friends of The Diamond Development Initiative (DDI). She provided the chapter members with an introduction to Artisanal Mining and Friends of DDI. … Continue reading

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