The relative chemical diversity of emeralds from different deposits worldwide allows clear origin determination in most cases. This contribution explains the criteria used by GIA to make geographic origin conclusions for emeralds.
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The geographic source of this rare color-change gem has a significant impact on value. Trace element chemistry profiles allow GIA to accurately determine origin for alexandrite from several countries.
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An overview of the geographic origin complexities facing the gem and jewelry industry today.
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A look at the gem ornamentation of this landmark, as well as the jewels of the Mughal dynasty.
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Recounts the history, geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production.
Read MoreAndy Lucas, GIA’s education manager of field gemology, researches and documents the mine to market journey of gemstones. Lucas shares the changes he observed in Colombia’s major emerald mining and cutting areas in a presentation he made at the 2017 JCK Las Vegas show.
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Examines Jaipur’s role as a colored stone cutting and jewelry manufacturing center, with profiles of 17 companies and their factory, trading, and retail operations.
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