When purchasing diamond jewelry, certification is your guarantee of quality. Learn the difference between the two most respected gemological laboratories.
IGI (International Gemological Institute)
The largest independent gemological laboratory in the world. IGI is widely recognized for lab-grown diamond grading and provides detailed reports on the 4Cs.
GIA (Gemological Institute of America)
The gold standard in diamond grading since 1931. GIA developed the 4Cs grading system used worldwide.
What Certification Tells You
- Cut — How well the diamond reflects light
- Color — Diamond color grade (D-Z scale)
- Clarity — Presence of inclusions (FL to I3)
- Carat — Weight of the diamond
Every Diavlia diamond comes with a Certificate of Authenticity. Learn more about our certification process.
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