23A E. Market St., Rhinebeck, N.Y.Rhinebeck, N.Y., has come a long way in the past 40 years. Hay wagons no longer crowd the streets, and visitors from New York City (100 miles to the south) practically outnumber the locals. The small, close-knit Hudson Valley community with a thriving population of artists is where Bruce Lubman, a GIA-trained gemologist and certified appraiser, and his wife, Peggy (pictured), have set up Hummingbird Jewelers, the only independent fine jeweler on Market Street, the town’s main drag. The husband-and-wife owners have had many retail-jeweler incarnations, and Hummingbird is the beautiful culmination of their hard work and artistic talents.  Have Van, Will Travel Bruce was one of 12 in George Washington University’s first class of environmental law grads, but at the time there was only government work in that discipline, and he wasn’t int