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Certification & Grading

Don't take our word for it

Every claim we make about a diamond is one you can check without us.

  • A report is not a receipt or a valuation.

    Where it comes from

    An independent lab's description of one exact stone, written by graders who never see the price. Nobody here touches a grade.

  • Every piece is independently certified.

    How to check it

    Every Belorsi piece is independently certified by IGI, the lab that grades most of the world's lab-grown diamonds, or by IGML, whichever is the best option for that piece. Enter the report number in the issuing lab's public lookup (IGI or IGML) and the grading appears from the lab, not from us.

  • The paper cannot quietly move to another stone.

    How to check it

    The same number is laser-inscribed on the girdle — too small for the eye, readable under any jeweler's loupe. The report also records measurements, exact carat weight, the graded 4Cs, polish and symmetry, and that the stone was lab-grown.

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  • Why two labs

    IGI or IGML, whichever is better for you.

    Both are independent labs grading the 4Cs. IGML also certifies pieces under one carat, so every Belorsi piece leaves with a report — studs, bands and tennis bracelets included. We pick the lab that is the best option for each piece and pass the savings on.

    Every Belorsi diamond is VS1–VVS2 clarity — nothing visible without magnification.

Buy the diamond. Then go check us. If anything’s off, it comes back free.