Author Archives: dcgiaorg

DCGIA 40th Anniversary Party

What a fun event full of surprises! Happy 40th Anniversary to the best GIA Alumni Chapter in the world! What a great great time and performance by Sound Advice (an Acapella Group) – Singing Xmas Carols, they were WONDERFUL!!! The … Continue reading

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Lab-grown Diamond – Screening Challenges

Presented by Randy Lightfoot & Guy Borenstein The Washington D.C. GIA Alumni Chapter was honored to welcome two prominent professional experts in gemology to present two presentations on current issues and challenges regarding lab-grown diamond screening. Low-priced lab-grown diamond is … Continue reading

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European treasures

The Washington D.C. Chapter was honored to welcome Denise Nelson. She has been a long time member of our chapter and various professional organizations since she started her appraisal business, “Inner Circle” 34 years ago. During her years of appraising, … Continue reading

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Jade & Pseudo-Jade

Eric Hoffman’s presentation reviews the characteristics of true jade, both nephrite and jadeite, and then focus on the many look-a-likes, treatments, and alterations.  Few gemstones are imitated as often and as deceptively as jade.  He will explain a few simple … Continue reading

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Must See US Gemstone Mines by Helen Serras-Herman

Enjoy a wonderful time hearing Helen’s presentation on Must-See US Gemstone Mines for the DCGIA Chapter. Travel with Helen to several operational and historic gemstone mines and museums in North Carolina, Montana, South Dakota, Oregon, Nevada, Colorado, and Arizona. Thank … Continue reading

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VICTORIAN JEWELRY: A Many Splendored Thing

By Elyse Zorn Karlin Elyse shared the jewelry styles from the Early Victorian period to the end, including showing the fashions that went with the jewelry. Queen Victoria reigned for 63 years and as the trendsetter for style she influenced … Continue reading

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AFGHANISTAN GEMSTONE INDUSTRY –

THE CALM BEFORE THE STORM – By Gary Bowersox Gary Bowersox shared his 50 years of gem-related exploration activities in Afghanistan with DCGIA members. Visiting emerald, ruby, aquamarine, kunzite, morganite, tourmaline, lapis and other gemstone mines throughout Afghanistan. Throughout history, … Continue reading

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Diamonds of the Forbidden Zone – By Denise Nelson G.G. GIA

Denise shares her once-in-a lifetime experience, a first-hand look at the diamond mines along the infamous Namibian Skeleton Coast of Africa. The extraordinary process of finding the world’s most precious gems, in this arid landscape, is revealed, along with a … Continue reading

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Secrets of the Gem Trade: The Connoisseur’s Guide to Precious Gemstones By Richard W. Wise

Secrets of the Gem Trade: The Connoisseur’s Guide to Precious Gemstones Continue reading

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Traditional vs Non-Traditional Sapphire by Sheahan Stephen

This video provides the tools to understand and articulate clearly to their customers the subtle difference between pinkish-orange, orangish-pink, and Padparadscha. Continue reading

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