Where to buy beluga lentils in RI?
Try calling Venda Ravioli - or one of the other places on Federall Hill - or Whole Foods - Beluga lentils are also known as black lentils. Actually, I'm pretty sure that whole foods has them in the bulk sections - actually, most health food stores do too.
If none of those work, Sid Wainer in New Bedford has an outlet and they carry both types of beans.
Trader Joe's carries pre-cooked beluga lentils. If you have no luck locally, www.purcellmountainfarms.com, in Idaho, carries them and also gigandes beans. I recently ordered a variety of dried beans from them and am happy with their service. I ordered on a Thursday night and they arrived by Priority Mail on Monday. Kudos to the Postal Service as well!