Education Seminars

AGTA regularly provides an exciting line-up of gemstone seminars at leading industry venues. Gain insight into the market's direction, industry trends and innovative services. See us at these events:

AGTA GemFair™ Tucson
AGS Conclave
AGTA GemFair™ at JCK Las Vegas

Education Calendar

 

Topic to be Announced
Richard W. Hughes, AGTA GTC
Vancouver, BC Canada
Sponsor: Canadian Gemmological Association
Saturday, October 20, 2007

The AGTA GTC Advanced Treatment Seminar
Today's gem market is literally in flux, as scientific advances produce an ever-changing landscape of gemstone treatments. To help dealers, jewelers and collectors keep pace with these developments, the AGTA GTC has developed an intense one-day educational seminar covering advanced treatments for ruby, emerald and sapphire. This seminar features
  • Limited class size
  • Hands-on sessions with actual gem samples
  • Expert instruction from AGTA GTC gemologists
Each section begins with a brief review of the major treatment technologies and the AGTA GTC's Gemstone Report nomenclature for that type of gem. This is followed by an intensive laboratory session, where participants personally examine samples. Each of the following topics are discussed during the one-day program: 1. Advanced Ruby Treatments
  • No thermal enhancement (NTE)
  • Thermal enhancement (TE)
  • Minor through significant flux healing (TE1–TE5)
  • Minor through significant glass cavity filling (C1–C3)
  • Minor through significant glass fracture filling (F1–F3)
  • Lab methods for identifying these treatments
  • Chromium diffusion (orange and red)
  • Multiple treatments
2. Advanced Emerald Treatments
  • No filler (NF)
  • Minor through significant fissure filling (F1–F3)
  • Stones with both oil and resin fillers are featured
  • Lab methods for identifying the presence of a filler and distinguishing between oil and resin fillers
3. Advanced Sapphire Treatments
  • No thermal enhancement (NTE)
  • Thermal enhancement (TE)
  • Titanium diffusion (blue)
  • Beryllium diffusion (orange, yellow, red, blue)
  • Synthetic overgrowth
  • Multiple treatments
  • Lab methods for identifying these treatments
If you are interested in participating in seminars, please contact the AGTA GTC at 212-752-1717 at 212-752-1717 or email info@agta-gtc.org.