EGL, IGI and HRD diamond certificates are not worth the paper they are written on. The color and clarity grades which their reports provide are incorrect. This has been common knowledge within the diamond industry for decades.
If you recently purchased a diamond certified by EGL, IGI, or HRD, your diamond is almost certainly not the same color or clarity as its certificate would lead you to believe.
You may have thought you were getting a “deal”. In reality, you were purchasing an incorrectly graded diamond at an inflated price which reflected the certificate rather than the diamond’s actual quality.
There is a reason why almost all EGL, IGI and HRD certified diamonds are in the SI1-SI2 clarity grades or H-J color grades. It is because their clarity grade is truly I1 or worse and/or the color grade is actually K or worse.
There are 2 motives behind this practice. Both are detailed below.