Verify authenticity by matching the diamond to an independent laboratory certificate (GIA, IGI, HRD), inspecting key report fields (cut, color, clarity, carat, report number), and requesting high-resolution imaging or laser-inscription verification. When in doubt, use an independent gemological lab for additional testing.
Key Facts
- Check the report number and match it to the stone (laser inscription if present).
- Important certificate fields: cut grade, color grade, clarity grade, carat weight, proportions map, and comments.
- Red flags: missing report number, vague descriptions, or pressure to skip independent verification.
Summary
Match the diamond to a reputable lab certificate, verify the report number and inscriptions, and use independent testing when necessary to confirm authenticity.
