Origin Determination of Ruby, Sapphire, Emerald and Paraíba Tourmaline
As a special "by request only" service, the AGTA Gemological Testing Center uses the latest analytical techniques and its extensive gemstone database to support a professional opinion concerning the geographic origin of either ruby, sapphire, emerald or Paraíba tourmaline.

Ruby Origin Report
Sample AGTA GTC Ruby Origin Report. Click on the report for a larger image.

Emerald Origin Report
Sample AGTA GTC Emerald Origin Report. Click on the report for a larger image.


Sample AGTA GTC Origin Report for Paraíba tourmaline. Click on the report for a larger image.

Enhancements
A full listing of the AGTA Enhancement Disclosure Requirements can be found here:

Other Reports
The AGTA Gemological Testing Center offers a full range of gemological services, including the following listed below:

    For our current fee schedule, see the following links:


American Gem Trade Assocation Gemological Testing Center
18 East 48th St., Suite 502
New York, NY 10017, USA
Tel: 212-752-1717; Fax: 212-750-0930
E-Mail: info@agta-gtc.org; Web: www.agta-gtc.org
© 1999–2005 American Gem Trade Assocation Gemological Testing Center. All rights reserved. Users may download this information for their own private, non-commercial use. Any other reproduction of this document (text or graphics) without the express written consent of the AGTA GTC is strictly prohibited.
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