Google+ The Daily Jewel: Fall 2013 Gems & Gemology looks at the Cheapside Hoard


Sunday, November 10, 2013

Fall 2013 Gems & Gemology looks at the Cheapside Hoard

Gems & Gemology Offers Behind-the-Scenes Look 
at the Cheapside Hoard Jewelry Collection

Fall 2013 issue reviews latest gemological research

The Fall 2013 issue of Gems & Gemology is 
now available.

The Fall 2013 issue of GIA’s (Gemological Institute of America) industry-leading peer-reviewed quarterly journal Gems & Gemology (G&G) journeys to the Museum of London’s astonishing new Cheapside Hoard exhibit of centuries-old jewelry; discusses “digits,” a naturally occurring pattern resembling fingers that is most often found in Ethiopian opal; unveils a useful clue indicating corundum heat treatment; reports on agates from Morocco; and much more. The issue is now available in print, and online with exclusive video content.

G&G’s cover story offers a remarkable preview of the Cheapside Hoard, an unrivaled collection of nearly 500 gems and jewelry pieces believed to have been buried in the seventeenth century that lay undisturbed in London until 1912.  Museum of London Director Sharon Ament and Senior Curator Hazel Forsyth discuss the remarkable history and gemological significance of the collection, which is being exhibited for the first time since the Hoard’s discovery. 

The Fall 2013 issue of Gems & Gemology journeys to the Museum of London’s astonishing
new Cheapside Hoard exhibit of early jewelry.
 Courtesy of the Museum of London;
photo by Robert Weldon/GIA.
Among the pieces chronicled are a gold locket featuring an image of Elizabeth I, a delicately carved cameo inspired by the Aesop fable “The Dog and His Reflection,” and an enameled gold ring set with a table-cut diamond, an evolutionary cut developed in the mid-fifteenth century. The exhibit is now on display through April 27, 2014.

Next is an examination of finger-like digit patterns mostly found in gem-quality Ethiopian opal. In another feature article, John Koivula, GIA’s chief research gemologist, documents a useful visual clue that indicates possible heat treatment of corundum, resulting from the conversion of limonitic residues to hematite in surface-reaching inclusions. The issue also includes a report on the chemical and mineralogical analysis of solid inclusions in Moroccan agate.

The Fall 2013 issue introduces a new G&G article category, the field report, which chronicles GIA expeditions to gem-producing areas and details future lines of research and publication. This issue recounts the July 2013 journey of Duncan Pay, G&G’s editor-in-chief, and a GIA research team to three sources of Oregon sunstone.

Since the first issue of Gems & Gemology was published in 1934, it has been recognized as one of the leading academic journals in its field. In 2013, G&G was made available in its entirety online. Today, the award-winning quarterly journal is available both as a print subscription and at no cost on GIA’s website. 

Additional details about G&G, full articles, more in-depth coverage, hundreds of additional photos, and exclusive video footage are available on GIA’s website at

About GIA
An independent nonprofit organization, GIA (Gemological Institute of America), established in 1931, is recognized as the world’s foremost authority in gemology. GIA invented the famous 4Cs of Color, Cut, Clarity and Carat Weight in the early 1950s and in 1953, created the International Diamond Grading System™ which, today, is recognized by virtually every professional jeweler in the world.

Through research, education, gemological laboratory services, and instrument development, the Institute is dedicated to ensuring the public trust in gems and jewelry by upholding the highest standards of integrity, academics, science, and professionalism. Visit

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