LAS VEGAS, Nev., Nov. 8, 2019 (SEND2PRESS NEWSWIRE) — Henry Winkler, Emmy-winning actor, director, producer, and New York Times best-selling author, will be the opening keynote speaker for the American Gem Society’s (AGS) Annual Conclave, which will be held in Denver, Colorado, April 27-29, 2020 at the Sheraton Denver Downtown Hotel.
