Certified Diamonds
Laboratory graded by AGS, HRD, GIA or IGI

Important diamond grading reports - Diamond BrothersDiamond Brothers sells certified diamonds. Do you need anything specific? We can source everything from small diamonds to larger stones in any quality that you want.

We only sell certified diamonds, this way you will always know exactly what you are paying for.

Certified diamonds are diamonds that have been graded by a gem laboratory based on their "4 Cs" attributes of Cut, Color, Clarity, and Carat Weight. When shopping for a diamond, it is highly recommended to purchase a certified diamond to insure the quality of the stone.


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  • IGI International Gemological Institute
  • HRD Hoge Raad van Diamant
  • GIA Gemological Institute Of America
  • AGS American Gem Society
  • LD Gems bvba Antwerp