AGTA is all very (very, very) high end stones, pearls and finished jewelry. I really loved walking through and looking at the booths - saw opera length diamond necklaces in one booth after another. One booth had a pile - more like a mound of south sea pearls heaped in the center of a what looked like an dirty old card table with a cardboard sign (cardboard looked like the bottom of a coke case) hand lettered - really scrawled - $5000 and up. If they had allowed pictures, that is the picture I would have taken.
If you are familiar with the Holidome, the AGTA was the complete opposite. Quiet, dignified, people dressed for business, no roll'ey backpacks. I think they had complimentary coffee and scones, places to sit and talk business...
There were some lectures as I recall, upstairs SNAG had a booth as well as some other organizations and publishers.