News
Bench notes on stones, instruments and certificate checks. A news item is not a GRA report; verify numbered certificates on the Certificate page.
How to read a GRA certificate number
Practical steps for reading a GRA certificate number and verifying it on Gemstone Laboratory.
Precise instruments detect dazzling raw stones
How Gemstone Laboratory uses precision instruments to read rough and fashioned stones before a GRA report is issued.
Having various precision instruments
A look at the instrument suite Gemstone Laboratory keeps ready for identification and grading work.
Carefully explore the dazzling raw stones
How laboratory staff study rough material before identity and quality factors are written into a GRA report.
Jewelry is a symbol of confidence and beauty
Why verified gemstone reports matter when jewelry is worn as a symbol of confidence and beauty.
Correctly identify natural ruby with red gems
How natural ruby is separated from red spinel, garnet and tourmaline on the laboratory bench.