Where can I buy GemEx certified diamonds?
Personalize your diamond

See the Brilliance, Fire and Sparkle

  • Clearly see the beauty of diamonds
  • Ensure you are choosing the most beautiful diamond for your budget
  • See and understand what GemEx measures
  • Compare GemEx certified diamonds to any other diamonds
  • Determine your preferred Light Performanceâ„¢ combination
  • Ask your jeweler to see the diamond in the GemEx Viewer