Gemological Science International offers a number of reports to meet customer needs. GSI diamond grading reports and colored stone grading reports vary in the amount of information provided, formats, sizes, and layouts. All GSI grading reports (often called “GSI Certificates”) are available online in PDF format.
All GSI grading reports are backed by GSI’s commitment to the highest ethical standards. They are the product of our hard work and dedication, and we proudly stand behind them. Enjoy peace of mind when your purchase diamonds and jewelry that are accompanied by GSI grading reports.