Why does lab-grown diamond certification matter?

A diamond grading report is an independent document that records a lab-grown diamond's verified colour, clarity, cut, and carat weight, issued by a certified gemological laboratory. Valquère certifies every lab-grown diamond from 0.30ct upward through IGI, the leading authority for lab-grown diamond grading. Each IGI report carries a unique certificate number you can verify directly on IGI's website, confirming the stone's identity and grade.

When comparing lab-grown diamonds across retailers, check that the certificate comes from IGI or an equivalent independent body.