F&N Jewelry Corp.

Jewelry manufacturing in Midtown Manhattan is a quiet craft that happens behind unmarked doors. The district’s workshops and studios supply designers across the city, turning raw metals and stones into pieces that end up in boutiques and galleries. One of these operations keeps its office on the sixth floor of a building just off Fifth Avenue.

F&N Jewelry Corp. is at 21 W 45th St Office 601, New York, NY 10036. The address places it within the Diamond District, where wholesalers, setters, and polishers share elevators and sidewalks. Latino-owned businesses have long been part of this ecosystem, contributing techniques and perspectives that shape the local trade.

While many shops in the area focus on retail, F&N specializes in the earlier stages—design consultation, casting, stone setting, and finishing. Clients who need custom pieces or small production runs can call (212) 760-2950 to discuss timelines and materials. The phone line connects directly to the office, where conversations about karat weights and engraving details take place without the pressure of a showroom.

For directions, the map at this link will guide you to the building entrance. The corridor upstairs leads to a suite where sketches become settings and settings become finished jewelry.