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Ronald Ringsrud
Ronald Ringsrud is an emerald dealer and writer of recent acclaim. He is noted for the new book ''Emeralds, A Passionate Guide'', which could be called an introduction to the world of colored stones through the examples of emeralds. This work draws on Ringsurd's decades of work in the emerald industry and includes the verifying element of a foreword written by John Koivula, the Chief Gemologist at GIA.
==Author Background==
Ronald Ringsrud possesses a broad background in emerald gemology and the world emerald market. He has given presentations and lectures on these issues since 1986. As the owner of Ronald Ringsrud Company, he was the “host and guide in Bogotá for visits to the emerald marketplace from foreign buyers” as well as guiding “groups from the L.A. County Museum of Natural History and the G.I.A. (Institute of America ) on their trips to the Colombian emerald source.”
Additionally, he published three articles in the prestigious and peer-reviewed journal ''Gems and Gemology'', produced by the Gemological Institute of America (GIA). As a contributor to ''Gems and Gemology'', the author “was a featured speaker at the GIA’s International Gemological Symposium in 1991.”〔 In 2006, Ronald Ringsrud presented at the GIA Gemological Research Conference in San Diego, California with the topic of “Subjectivity in Gemology.”
In an interview with ''Southern Jewelry News'', Ronald Ringsrud describes his rise to the Board of Directors of the American Gem Trade Association (AGTA).〔http://www.southernjewelrynews.com/archive/20100-archive/294-jeweles-profile?format=pdf〕 He mentions the secrecy and intrigue of the emerald mines of Colombia, stating that “the mines are very shrouded and closed.”〔 Ronald Ringsrud’s enthusiasm for the field has even extended to creating video clips posted on sites such as YouTube. Also, his charitable activities in Colombia have been benefiting people in the mining area for more than a decade.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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