LUX GEMJewelry Co., Ltd.

IGI Certified

IGI-Certified Lab-Grown Diamonds

IGI certificates make diamond comparison clearer across carat, color, clarity, cut, and certificate number before selecting a stone for engagement rings or fine jewelry.

Guide

What to check in the certificate

  • Match the certificate number with the listed diamond.
  • Review the 4Cs together, not carat alone.
  • Check cut, polish, and symmetry.
  • Request real imagery or a private viewing before setting.

Frequently asked questions

Why does an IGI certificate matter?

It documents the diamond specifications and makes comparison between stones more transparent.