In a coordinated effort, American Gemological Laboratories, Inc. and American Gem Trade Association’s Gemological Testing Center have identified an important discovery of a new treatment of Tanzanite. The article with images shows the results of this research and discovery.
There are two articles on the issue which can be read here: AGTL and AGL Identify New Tarzanite Treatment and AGL Identifies - "New Coating Treatment" on Tanzanite.
About American Gem Trade Association-Gem Testing Center
The American Gem Trade Association is a not-for-profit Association serving the natural colored gemstone and cultured pearl industry since 1981. The AGTA serves the industry as "The Authority in Color" and has its headquarter office in Dallas, Texas and the world-renowned Gemological Testing Center in New York, New York (www.agta-gtc.org).
About American Gemological Laboratories
Founded in 1977 by C. R. "Cap" Beesley, American Gemological Laboratories (AGL), a subsidiary of the publicly traded Collector's Universe (NASDAQ: CLCT), pioneered the development of the world's first comprehensive Colored Stone Grading System (www.aglgemlab.com) AGL has also provided detailed country of origin and enhancement reports for some of the most prestigious retailers and auction houses in the world for the past three decades. In 2007, AGL was the designated official North American laboratory of the International Colored Gemstone Association (ICA). In addition, the laboratory is the official colored gemstone laboratory of the 2007 Fine Jewelry CEO Summit and the JCK Las Vegas Shows, as well as the 2007 Platinum Sponsor of the ICA World Congress in Dubai.
Contacts:
Dr. Lore Kiefert
Director
AGTA-GTC
LKiefert@agta-gtc.org
Christopher P. Smith
Vice President and Chief Gemologist
AGL
chsmith@aglgemlab.com