Renée Newman, GG Paperback, 152 pages 6th Edition International Jewelry Publications, 2017 ISBN: 9780929975528 $19.95 Renée Newman’s Pearl Buying Guide is the 6th edition on how to identify and evaluate pearls mainly written for consumers. Her efforts to make gemological information…
Book ReviewRichard W. Wise, GG Hardcover, 385 pages 2nd Edition Brunswick House Press, 2016 ISBN: 9780972822329 $99.95 Most gem professionals are familiar with the first edition of this large volume by Richard Wise. It has been sold…
Book ReviewDiscovery of vivid blue, green, and purple-to-violet tourmalines, a.k.a., “Paraíba” in Batalha, Brazil in 1982 changed the way the gem market perceived tourmalines. The unquestionably vivid colors were due to copper and this color agent…
Market TrendsThe AGA Conference was held in Tucson, AZ on February 1, 2017. This full day meeting is a popular conference and attended by gemologists from around the world. The annual conference is followed by a…
ConferencesIntroduction Hackmanite, Na8Al6Si6O24(Cl2,S), is the rare variety of the mineral species sodalite. Sodalite is a translucent to opaque, dark blue to violet-blue material that is used for jewelry purposes, typically fashioned as cabochons or beads, while…
Gem NotesRough diamonds doing better while polished diamond prices struggle. The market is at odds with itself—again! New Canadian diamond mine, Gahcho Kué in Canada’s Northwest Territories, promising source of large fine quality diamonds. The year 2017…
Diamond MarketIn 2008, the U.S. signed into law the “Tom Lantos Block Burmese Jade Act affecting both rubies and jade from being exported to the U.S. This past October, the ban was lifted. What were the effects of…
Featured ArticlesTucson saw a better ratio of buyers but overall traffic was lighter than last year. Prices favored buyers in key upper commercial to good qualities. Garnet, tourmalines and spinel in strong demand. Sapphire leads western…
Colored Stone MarketThe U.S. colored stone trade expectations for the year 2017 shows are very upbeat. An update on Chinese freshwater cultured pearl pricing... Numbers indicate that online shopping had a significant rise during the holiday season compared…
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