One of the greatest concerns with emerald filling is the degree of clarity enhancement such treatment represents
Read MoreThis article focuses on Colombian emeralds and gives a detailed explanation of the oiling process as observed by the author.
Read MoreThe finest and rarest emeralds are sometimes said to have an optical effect called gota de aceite.
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This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
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