For real saffron in Greater Boston, the most reliable options are Persian and Afghan markets in Watertown and Newton, specialty grocers like Sevan and Russo's, and direct from Raihan Saffron in Lynn, MA. Avoid generic supermarket "saffron threads" priced under $3/g.
Persian and Afghan markets
Sevan Bakery (Watertown) — Middle Eastern grocer with Iranian-origin saffron tins.
Arax Market (Watertown) — Wide spice selection, ask for the dated tins.
Pasta Pasta and other Newton Persian groceries — small but trustworthy spice corners.
Specialty grocers
Wegmans, Whole Foods — typically Spanish or Iranian Sargol at premium prices. Real, but pricier per gram than direct importers.
Direct from a local Massachusetts importer
Raihan Saffron — based in Lynn, MA. Hand-imported all-red Negin from Herat, Afghanistan. Free local shipping in Eastern Massachusetts on orders over $50. Pickup by appointment.
What to avoid
Tourist gift shops, generic supermarket clearance racks, and any "saffron" priced below $2/g.