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Description At Gemological Science International (GSI), we understand that, in the diamond industry, quality and integrity are invaluable. We built our company on the foundation of a management team that is both knowledgeable and trustworthy.

We at GSI have a vision: to create a modern, state-of-the-art diamond grading lab that takes advantage of the latest breakthroughs in diamond grading. To do this, we reengineered the diamond grading process and founded it on foolproof cutting-edge technology and automation. The result is diamonds that are graded to the highest standards.
Address 581 5th Ave
Manhattan
New York City
10017
United States of America
Phone number 212-207-4140
Fax number 212-207-4156
Nearest subway/
train station
47-50 Sts/Rockefeller Ctr (B, D, F)
Nearest bus stop 5th Ave & W 47th St
Rating
  • 100/5
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5/5 based on 1 vote.
Listing Views 10 listing views.
Submission Date 14/07/20 (Edited 17/01/21)



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Latitude: 40.756806
Longitude: -73.978146