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A leader in its field, The Journal of Gemmology publishes original research articles on all aspects of gemmology, including natural stones and their treatments, synthetics and simulated gemstones. In addition, sections such as Gem Notes, What’s New, Conferences, Learning Opportunities, New Media and Literature of Interest inform readers about new instruments, publications, articles and educational events. The Journal is currently published by Gem-A in collaboration with the Swiss Gemmological Institute (SSEF) and with support from American Gemological Laboratories (AGL).