Compares PL spectroscopy data of 48 emerald samples from three countries to evaluate the usefulness of the technique in geographic origin determination.
Read MoreJaipur, India, is a leading emerald cutting and trading centre for the global gem and jewellery industry. See inside the industry with a GIA field team, and learn the intricacies of a business seldom seen by the public or most members of the industry.
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This article examines the mysteries of rough emerald cutting through a spectacular pair of cat's-eye emeralds from Colombia.
Read MoreThe technique is nondestructive and, with Fourier transform instrumentation, extremely rapid in comparison to most laboratory methods.
Read MoreA treatise on the design, display, care and repair of fine gemstones.
Read MoreThe Coscuez mine, one of a number in Colombia, is rapidly gaining significance as a major source of fine emeralds.
Read MoreThe properties and techniques of flux-grown synthetic emeralds from Russia are discussed.
Read MoreFrom the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.
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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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