John Tu has cut back a little. He does a few West coast shows.

In the East, check for Intergem shows - International Gem & Jewelry Show, I think. Open to everyone. If you have a wholesale license, G&LW - Gem & Lapidary Wholesalers does a good show. You can google them and see if one comes near you. If you have never been to a trade show, they can be a lot of fun.