The Sonora blooms with color in February. These shows offer some of the best selections.(Above)1. The Gem & Jewelry Exchange (Feb. 4–9, gjxusa.com) at 198 S. Granada Ave. hosts U.S. and overseas dealers with fine goods—like this necklace with gray diamonds, Tahitian keshi pearls, and black diamond beads. 2. Look for everything from finished jewels to gem carvings at the Jewelry, Gem and Mineral Expo (Feb. 1–16, jgmexpo.com). 3. The Pueblo Gem & Mineral Show (Jan. 31–Feb. 12, pueblogemshow.com) has both fossils and gems, like this 10.71 ct. faceted sunstone.Opal Illusions’ sunstone ($1,200/carat)4. The JOGS International Exhibits 2014 Gem & Jewelry Main Show (Jan. 30–Feb. 10, jogsshow.com) is a great source for bead strands. 5. The American Gem Trade Association GemFair (Feb. 4–9, agta.org) boasts the city’s finest selection of gemstones, li