S & J Diamond Corporation

Diamond circles float around Midtown like benchmarks staked in stone. Ask anyone who has tracked a gemstone to a finish line and they’ll tell you about precision and trust. Between the high-rise pylons and sidewalk grates, a reliable jeweler stands ready at 580 5th Ave. S & J Diamond Corporation brings decades of trade rhythm to the block every business day.

Diamonds need a cutter sharp enough to respect the crystal, and gold needs a hand confident enough to shape it. Between tension-set bands and prong-set solitaires, the shop manages small signature works alongside larger custom pieces. Melee grading and re-polishing services pass through the same doorway, keeping old pieces alive for new stories. Everything they handle—from pendant adjustment to claw repair—feels like working inside a machine built for longevity. The place stays tuned to the neighborhood tempo, slipping seamlessly between walk-in repairs and future commissions.

To lock in an appointment, dial (212) 575-0111 and let the phone ring once. When you arrive, the address is stamped on the block itself: 580 5th Ave, New York, NY 10036. Copy the map before you leave: directions will drop you right outside the revolving doors between 41st and 42nd Streets, under the constant hum of Midtown.