Author Archives: dcgiaorg

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

Posted on October 30, 2014 by dcgiaorg

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 →

Posted in Meeting Archives | Tagged , , , , , , , , , | 1 Comment

GLMSDC 2014 Fall Auction

Posted on October 14, 2014 by dcgiaorg

The Gem, Lapidary and Mineral Society of Washington, D.C. – 2014 Fall Auction Featuring unique minerals from the Catherine J. and Bruce Gaber Collection – Plus gemstones, jewelry, lapidary rough, books, beads, fossils, and more Sunday, October 26, 2014 Preview, Noon-1 … Continue reading →

Posted in Announcements | Leave a comment

70X Microscope FOR SALE

Posted on October 14, 2014 by dcgiaorg

DCGIA Chapter Member has a MODEL: 570 0.7 TO 4.2X – 70X Microscope with darkfield and reflective illumination ​FOR SALE Manufacturer: American Optical Corporation, Buffalo, New York 14215 MADE IN USA Asking $500 Contact dcgiaorg@cox.net for contact information

Posted in Announcements | Tagged | 1 Comment

Maya Jade-The revival of a gem revered by royalty! – Helen Serras-Herman

Posted on September 30, 2014 by dcgiaorg

We were all inspired by Maya Jade-The revival of a gem revered by royalty! Helen told the story of the Olmec, Maya, and Aztec civilizations, as she covered her recent trips to Mexico and Guatemala, where she visited archaeological sites, … Continue reading →

Posted in Meeting Archives | Tagged , , , , , , , , , , | Leave a comment

Two Different Views – Elyse Zorn Karlin and Gail Brett Levine

Posted on September 12, 2014 by dcgiaorg

Elyse Zorn Karlin and Gail Brett Levine enthralled members with their “Two different views…what we have learned in 80+ years of studying jewelry.” Covering the alphabet from A to Z the two provided a jewelry historian’s and appraiser’s thoughts on what … Continue reading →

Posted in Meeting Archives | Tagged , , , | Leave a comment

Archaeogemmology – Dr. Çigdem Lüle

Posted on July 29, 2014 by dcgiaorg

Çigdem Lüle, PhD, FGA., GG (GIA) is a Turkish born research gemologist and mineralogist. Çigdem works at Gemworld International in Chicago (Email: clule@gemguide.com) and spent the weekend providing training for ASA at Martin Fuller’s office. Çigdem graciously accepted our request … Continue reading →

Posted in Meeting Archives | Tagged , , , , , | Leave a comment

Montgomery County Gold Mine History – Walter A. Goetz

Posted on June 21, 2014 by dcgiaorg

Walter A. Goetz a leading authority on gold mining in Maryland, enthralled the DCGIA Chapter membership with his extensive research, and personal adventures locating and verifying the “on site” remains of the gold mines once actively worked in our area. Walter … Continue reading →

Posted in Meeting Archives | Tagged , , , , , | 3 Comments

17th Century Diamonds & Pearls – Dr. Brenda Foreman

Posted on May 29, 2014 by dcgiaorg

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 →

Posted in Meeting Archives | Tagged , , , , , , , , , | Leave a comment

Webinar on Protecting Antique Ivory Trade

Posted on May 20, 2014 by dcgiaorg

What: This webinar will look closely at the Obama administration’s latest proposals; examine their potentially devastating effects on scholarship, on the educational work of museums and other cultural institutions, and for collectors, dealers and law-abiding citizens across the globe; and … Continue reading →

Posted in Announcements | Tagged , , , , | Leave a comment

FAIRFAX American Antique Arts Association – IDENTIFICATION OF IVORY

Posted on April 30, 2014 by dcgiaorg

Who: Bobby Mann co-founder of the International Ivory Society (1996). Since then he has been teaching Ivory identification thru his talks, seminars, books, and hands-on workshops. What:  Discussion will include identification of ivory, bone, tortoise shell, antler, man-made materials, and fakes. Bring examples … Continue reading →

Posted in Announcements | Tagged , , , , , , , , , , , | 2 Comments