The trap is getting you to let them cut the stone. This show is all of the vendors from the big Tucson show making roadtripping to all of the jewelers that couldn’t make Tucson.I've done quite a bit of traveling in the NC mountains. When my boys were younger we would make stops to let them do jem mining at the tourist traps. I know that material is shipped in and not native to the area but over the years we got some interesting stones, emeralds, garnet, rubies, amethyst, and some unusual stones. I thought about getting them cut or putting them through a tumbler but never did anything with them.