What is a GIA certificate?

1 min read
Quick answer: GIA Certificate = independent grading report for all 4Cs of a diamond. Report number verifiable online at gia.edu free of charge.

A GIA certificate is the independent examination report of the Gemological Institute of America for a diamond, which objectively evaluates all four Cs (Cut, Color, Clarity, Carat). It is the worldwide gold standard for diamond certification.

What information does a GIA certificate contain?

  • GIA report number (also laser-inscribed on the stone)
  • Cut shape and cut style
  • Measurements in millimeters
  • Carat weight
  • Color grade (D–Z)
  • Clarity grade (FL–I3)
  • Cut grade (Excellent–Poor) for round brilliant diamonds
  • Fluorescence

How to verify a GIA certificate?

Enter the report number on gia.edu – free of charge and instantly. The number is also microscopically engraved on the girdle of the stone. Both together 100% prove the authenticity of the certificate.

Only GIA-certified diamonds: corelunejewellery.de.

Ready to upgrade?

Free shipping over €100 · 14-day returns

Shop the collection →

Shop this item

Get the next guide first

Did you love this guide?Shop now