LECTURES 2018
AGS Conclave 2018
Nashville, TN
April 23-25, 2018
Sheahan Stephen - Content Speaker
Gemstone Quantification in a Fluid Market
Tuesday, 2018-04-24
10:15 - 11:15
Room: Cumberland 3
LECTURES 2017
Gallery of Jewels lecture March 17th, 2017
Union Square
427 Post St.
San Francisco, CA 94102
GIA
San Francisco Chapter
TBD 2017
Sheahan Stephen - Content Speaker
Sri Lanka Geuda Sapphire and Thermal Treatment
AGS Conclave 2017
Los Angeles, CA
Sheahan Stephen - Content Speaker
Sri Lanka Geuda Sapphire and Thermal Treatment
San Francisco Gem & Mineral Society
July 1, 2017 @ 6pm
Sheahan Stephen - Content Speaker
