The Latest Gemological News From the AGTA GTC
2008
2007
- 12/27/2007 – Season's Greetings from the AGTA GTC
- 11/28/2007 – AGTA GTC Seminar December 3
- 11/12/2007 – AGTA GTC Issues Tanzanite Grading Reports
- 10/09/2007 – AGTA GTC Continues Education
- 08/22/2007 – IGC Report; Coated Topaz
- 07/11/2007 – Large Purple Sapphire
- 05/22/2007 – Beryllium in Sapphire
- 05/10/2007 – AGTA GTC Prepares for Mobile Lab in Vegas
- 05/01/2007 – Laboratory Update – New Record for Sapphire
- 03/27/2007 – Laboratory Update – Ruby with Multiple Personality Disorder
- 02/27/2007 – Laboratory Update – Pondering Paraíba
- 01/22/2007 – Laboratory Update – Tucson 2007!
2006
- 12/22/2006 – Laboratory Update – GIT Conference in Thailand
- 11/21/2006 – Laboratory Update – Lecture Series
- 10/17/2006 – Laboratory Update – Auction Action
- 10/06/2006 – Laboratory Update – Hunting the Mother Lode Abroad
- 09/12/2006 – Laboratory Update – Malysheva Emeralds
- 08/29/2006 – Laboratory Update – CIBJO Conference
- 08/15/2006 – Laboratory Update – Upcoming Lectures
- 07/27/2006 – Laboratory Update – Green Diamonds
- 06/23/2006 – Laboratory Update – LIBS Testing
- 05/30/2006 – Laboratory Update – Las Vegas JCK Show
- 05/18/2006 – Laboratory Update – Paraíba Tourmaline
- 05/10/2006 – Laboratory Update – Las Vegas JCK Show
- 03/29/2006 – Laboratory Update – Beryllium-Treated Blue Sapphires
- 02/27/2006 – Laboratory Update – New Ruby Record
- 01/17/2006 – Laboratory Update – Seeing Red
2005
- 12/14/2005 – Laboratory Update – New Zealand Sapphire
- 11/29/2005 – Laboratory Update – Synthetic Healing of Ruby
- 11/22/2005 – Laboratory Update – Passport to Obscurity
- 11/15/2005 – Laboratory Update – Madagascar's Ruby & Sapphire Mines
- 11/08/2005 – Laboratory Update – Colombia's La Pita Emerald Mines
- 11/01/2005 – Laboratory Update – The Raman Spectrometer
- 10/25/2005 – Laboratory Update – Proletarian Gemology: The Blue Filter
- 10/12/2005 – Laboratory Update – UV Fluorescence 3: The Green Filter
- 10/04/2005 – Laboratory Update – Verneuil Synthetic Corundum
- 09/27/2005 – Laboratory Update – Lecture in New Mexico
- 09/20/2005 – Laboratory Update – Glass-Filled Star Ruby
- 09/06/2005 – Laboratory Update – Tanzanite Crystal
- 07/26/2005 – Laboratory Update – Trapiché Emeralds
- 07/19/2005 – Laboratory Update – Fiber-Optic Lighting
- 07/12/2005 – Laboratory Update – Padparadscha
- 05/31/2005 – Laboratory Update – Rutile Silk
- 05/24/2005 – Laboratory Update – UV Fluorescence 2
- 05/17/2005 – Laboratory Update – Fingerprints
- 05/10/2005 – Laboratory Update - UV Fluorescence
- 05/02/2005 – Laboratory Update - Demantoid Cat's Eye
- 04/14/2005 – Laboratory Update - Ruby Record
- 03/30/2005 – AGTA GTC Announces Reduced Turnaround Times
- 03/14/2005 - Staff Changes at the AGTA Gemological Testing Center
- 01/06/2005 - New Staff Members at the AGTA GTC
- 01/06/2005 - Lead Glass Fracture Filling in Ruby
2004
- 07/02/2004 – New Ruby Treatment Arrives in the United States
- 04/27/2004 – AGTA GTC to Issue "Standard Heat Treatment" Reports for Blue Sapphires with Unusual Color Distribution
- 02/23/2004 – Status of Research Related to Blue Sapphires with Unusual Color Zoning
2003
2002
- 11/26/2002 - AGTA and ICA Join Forces to Announce Bulk Diffusion Process on Corundum
- 09/04/2002 – Beryllium Diffusion Coloration of Sapphire - Summary of ongoing experiments
- 05/31/2002 – AGTA GTC Announces Updated Wording on ID Reports for new Corundum Treatment
- 04/19/2002 – Further Characterization of Sapphires Recently Treated in Bangkok
- 03/18/2002 – AGTA and GIA Researchers Meet with Thai Treaters
- 02/25/2002 – Disclosure Policy for New Corundum Treatment
- 01/08/2002 – Orange-Pink Sapphire Alert from the GTC
Other news
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