Gary Roskin
 Gary Roskin is a graduate gemologist and a Fellow of the Gemological Association of Great Britain. A former teacher at the Gemological Institute of America, Gary also understands retail jewelry from behind the counter—he grew up in his family’s jewelry store in Indiana. His insights make him a popular draw in the magazine, and when speaking at industry conference programs. His expertise not only makes JCK the only industry magazine (other than GIA publications) to have a gemologist in residence, and he is frequently called upon by colleagues asking, “what’s this?” User Stats
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JCK VoicesRecent PostsLive from Brazil - Day 2 at the Gem ShowJune 27, 2008 | Link This | Email this | Comments (0) Back at the show, it was another day of seeing Brazilian gems and afterwards, a fashion show of Brazilian jewelry. Here are a few images from the day for you to enjoy.  ...Read More Industries: Gemstones and Pearls, Tradeshow and Association News Recent PostsLive from Governador ValadaresJune 25, 2008 | Link This | Email this | Comments (0)
The first day at the Brazil Gem Show is over and I was not disappointed. We’ve seen everything expected, including tourmalines, beryls, quartzes, garnets, emeralds, and opals.
One half-expected surprise, if I can say that, was to see Mozambique tourmalines labeled Paraiba* . I have spoken to a few suppliers here about the nomenclature issue and they are quite torn between willing to follow what has already been accepted by many, and promoting Mozambique as its own important locality. I will offer up a full report on that issue when I get back. ...Read More Industries: Gemstones and Pearls, Tradeshow and Association News Recent PostsLive from the 12th Annual Brazil Gem ShowJune 25, 2008 | Link This | Email this | Comments (0) Here we are in Minas Geraís, in the city of Governador Valadares for the 12th annual Brazil Gem Show, the largest gem show in all of Latin America. My trip, sponsored by IBGM, Istituto Brasileiro de Gemas E Metais Preciosos (Brazilian Gems & Jewellery Trade Association) started Monday morning, arriving here in G.V. last night at 6 p.m.
Included in our welcome package at the GV Center Hotel is a booklet showing the floor plan of the event and listing just over 100 exhibiting suppliers and gem dealers. A small number of names stand out recognized from past JCK Shows and Tucson Gem & Minerals Shows like Manoel Bernardes, Pinkstones, Ben Sabbagh Bros., and Vianna Joias, but there are still over a hundred more unfamiliar names with gems that I am anxious...Read More Industries: Gemstones and Pearls, Tradeshow and Association News Recent PostsOn my desktop this week…June 16, 2008 | Link This | Email this | Comments (0) June 16, 2008
A week from now, I’ll be on a plane from Philly to JFK to catch a red-eye heading south to Sao Paulo. A couple of flights later, I’ll be in Governador Valadares, Minas Geraís covering the annual IBGM gem and mineral show for you. I’m looking forward to the trip, since so many different gem materials come from the region. I expect to see most if not all of it there at the show. In anticipation of that, I’ve just transferred 9 gigs of images from my laptop to make room for all of the images I plan to capture while I&r...Read More Recent PostsAndesine UpdateMarch 5, 2008 | Link This | Email this | Comments (27) Andesine Update
Well, the Mongolian/Chinese andesine rough courtesy of Jewelry Television has made its way to some pretty intelligent folk, including Dr. Shigley at GIA, Dr. Rossman at Cal Tech, and Dr. Emmett, in Washington State.
They are testing the material and I am guessing that the results may take another few months as the “recipe” calls for some fairly long cooking times.
The Tucson rumor of diffusion treatment is still in question, but weakening a bit. The Japanese lab which has bee...Read More Industries: Gemstones and Pearls
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