Diamond Certification / IGI
Independent grading reports help you understand the diamond in your Asteria jewelry — especially lab-grown and colored stones.
Why IGI matters
IGI (International Gemological Institute) is widely used for lab-grown diamonds. A report documents carat, color, clarity, cut, and identity so the stone can be verified beyond the seller’s description.
How Asteria presents certificates
When a piece includes an IGI report, we show the report number and a link to the official report on the product page. Learn more in our guides on IGI certification and reading a diamond certificate.