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Emerald
Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine.
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Research
Field Gemology: Building a Research Collection and Understanding the Development of Gem Deposits
With more than 90 field expeditions on six continents since 2008, GIA has accumulated over 22,000 colored stone reference samples. This extensive collection of colored stones with known origins supports GIA’s research on geographic origin determination.
The Geographic Origin Dilemma
An overview of the geographic origin complexities facing the gem and jewelry industry today.
Geology of Corundum and Emerald Gem Deposits: A Review
Over the last two decades, knowledge of the formation of gem deposits has improved significantly. This article reviews the state of our knowledge of the geology and genesis of gem corundum and emerald deposits.
Geographic Origin Determination of Emerald
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.
Unique Vanadium-Rich Emerald from Malipo, China
Spectroscopic and chemical analyses of emeralds from this Chinese deposit show a unique composition.
Gemstones in the Era of the Taj Mahal and the Mughals
A look at the gem ornamentation of this landmark, as well as the jewels of the Mughal dynasty.
The Talisman of Charlemagne: New Historical and Gemological Discoveries
Reveals new details about this historical jewel and the results of its first gemological analysis.
Land of Origins: A Gemological Expedition to Ethiopia
Documents a visit to the sapphire, opal, and emerald mining and trading areas of Ethiopia.
Geographic origin determination of emerald
Saeseaw S., Renfro N.D., Palke A.C., Sun Z.Y., McClure S.F. (2019) Geographic origin determination of emerald. Gems & Gemology, Vol. 55, No. 4, pp. 614-646.
Gilson Cat’s-Eye Synthetic Emerald
In the early 1960s, French ceramist and engineer Pierre Gilson succeeded in growing and producing flux synthetic emerald of commercially marketable quality.
Second World Emerald Symposium
Important topics such as sustainability, blockchain, nanotechnology, and traceability were discussed at the second World Emerald Symposium held in Bogotá.
Emeralds Filled with Epoxy Resin: DiamondView Observations
“Blue flashes” seen with the DiamondView help to analyze the quantity and variety of emerald-filling substances.
