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💎 What’s Driving Today’s Diamond Market?

Join Us June 23 for the AGA 2026 Virtual Conference

Scholarship & Research Grant Applications Are Now Open!

💎 What’s Driving Today’s Diamond Market? Join Us June 23 for the AGA 2026 Virtual Conference

Scholarship & Research Grant Applications Are Now Open

💎 Colors of the Diamond Market – June 23
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Paula Stewart
, 
GG, GIA
Accredited Senior Gemologist
Post Falls
, 
ID
United States
Courtney Ann Stewart
, 
G.G., Ph.D.
Accredited Senior Gemologist
New York
, 
NY
United States
stacy summers
Accredited Senior Gemologist
Jacob Talve-Goodman
, 
ASG, GG, AJP
Accredited Senior Gemologist
Creve Coeur
, 
MO
United States
Leanne Tashjian
Accredited Senior Gemologist
Wei Hong Teo
, 
GIA G.G. & Pearls, GIC Dip. Jadeite Jade, FEA Dip. Eaglewood
Accredited Senior Gemologist
Singapore
Singapore
Thomas Terpilak
Accredited Senior Gemologist
Dr. David Brian Thompson
Ruth Thuston
Accredited Senior Gemologist
Marco Torelli
Accredited Senior Gemologist
Roma
, 
Lazio
Italia
Stacey Trolly
Accredited Senior Gemologist
Stephen Turner
, 
Graduate Gemologist (GIA), Certified Senior Member (NAJA), Accredited Senior Gemologist (AGA)
Accredited Senior Gemologist
Starla Turner
Accredited Senior Gemologist
Matthew Ubertini
, 
GIA GG, RGA, AJP, CMA (NAJA)
Accredited Senior Gemologist
New York
, 
NY
United States
Thom Underwood
, 
GIA GG, FGA, ASA, MGA (retired), NAJA (retired)
Accredited Senior Gemologist
Atlantic Beach
, 
FL
United States
test user
Accredited Senior Gemologist
Bonnie Vanover-Cook
, 
Graduate Gemologist, Certified Appraiser NAJA.
Accredited Senior Gemologist
Ocala
, 
FL
United States
Andrea Venn
Accredited Senior Gemologist
Deborah Villepigue
, 
GG,ICGA
Accredited Senior Gemologist
Manhasset
, 
NY
United States
Roman Virec
, 
IGI Antwerp G.G., IGI Antwerp D.G., GIA AJP, GIA Graduate Pearls, Gübelin Academy Coloured Gemstone Professional
Accredited Senior Gemologist
Banskobystrický kraj
Slovakia