GHI Gemological Laboratory
Business Details
About
What happens when a diamond’s journey pauses in Midtown? GHI Gemological Laboratory offers a quiet counterpoint to the avenue’s retail clamor—certificates that travel farther than the stones themselves. Gem labs are the unsung ledgers of the jewelry trade; here, refractometers and spectrometers translate brilliance into cold, verifiable facts. Fifth Avenue’s upper floors are a warren of such precision, where every facet angle and inclusion is logged without sentiment.
You’ll find the office at 580 5th Ave #2750, New York, NY 10036, a vertical address that spares clients the sidewalk shuffle. A call to (212) 884-9920 secures an appointment slot; the same number fields questions about grading reports or laser inscriptions. Directions to the suite are best pulled from the map before arrival—elevators in this building are swift, but the lobby can feel like a maze on a busy afternoon.
