The big one in the US that is the reference is Tucson. The Tucson gem show is actually a show of shows (over 20 shows I think).
A great show among the Tucson gem shows to learn about gemstones is the Tucson Gem and Mineral Show (TGMS). It is the original show that started the big "Tucson gem show" event.
As you know, with colored gemstones, it is all about the color. Sparkle is for diamonds, and color is for gemstones. When you look at colored gemstones, don't just do a quick glance and walk away. Stare at the stone; see the difference in the hue for each color. No two stones are ever the same. They may all look like red rubies, but nope... each is unique.


Split hairs when evaluating. Detail is important. You'll then learn to know exactly what you like when choosing a colored gemstone.
As FYI, the high end show in Tucson is AGTA. It is for the trade only. I have only been to AGTA once. Wow... the loose stones are gorgeous, and the finished pieces are beyond magnificent. Many of the major brands that focus on colored gemstones are part of AGTA... Bayco, Picchiotti, JB Star, Robert Procop, Omi Prive. You can't get into AGTA's gem show, but you can see these brands in jewelry stores, and the store will usually carry a few pieces. Check them out too to look at the beautiful color. If you like any of these brands (or similar brands), you can ask your jeweler when they go to Tucson to go to their booth and check out what's there. She can take photos and text you; she may also invite you as a guest. Most independent jewelry stores go to Tucson to buy, and actually, that's how I found about Tucson. My jeweler told me that's where they go to see new jewelry trends and buy pieces. She also said she can text me photos of pieces from the brands I listed earlier.
There are many companies that sell colored gemstone pieces at all price points, so you can also start learning about stones by browsing your local stores. Also, go to these websites of the companies above. Even on the website, each stone in every piece is different.
Yikes, sorry for the long off-topic post!


I get easily excited and want to share. I will zip it and stay on topic.
I hope you fall in love with colored gemstones.

VCA diamond bling is nice, but my heart goes to color gemstones.