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Report Format

Verbal results provided only

Projected Service Time*

  • 45 minutes for 1 to 5 loose diamonds

*Subject to change based on volume and additional testing requirements.

Service Criteria

  • Available for GIA graded diamond
  • Available for loose natural or laboratory-grown diamonds with and without inscription
  • Maximum submission per walk-in is 5 loose diamonds
  • Original GIA report or a facsimile preferred, but not required, to accompany the diamond

To make an appointment or for questions, please contact mumbailab@gia.edu or suratlab@gia.edu

About GIA

Established in 1931, GIA protects the public through gemmological research, education, impartial gem identification and grading services, and instrument development. The world’s foremost authority in gemmology and creator of the 4Cs, GIA sets the standard for determining the quality of diamonds and performs research-based identification of coloured gems and pearls. All of GIA's activities are governed by its mission to serve the public. Learn More