Where can I buy GemEx certified diamonds?

Certification

The global leader in diamond Brilliance, Fire & Sparkle certification

Jewelry customers want to purchase and wear beautiful diamonds.  What makes a diamond beautiful is the way it plays with light.  GemEx pioneered the concept of scientifically measuring diamonds for Light Performance┬« certification.

Over 3 million diamonds have been certified by GemEx and sold by jewelers throughout the United States, United Kingdom, Europe, Austrlia, India, Hong Kong and China.

With GemEx, you will increase your diamond sales by providing your customers with diamonds certified for their superior brilliance, fire and sparkle. 

 

Light Performance Certificate

How is diamond Light Performance certified?

GemEx evaluates diamond beauty by measuring Brilliance, Fire & Sparkle

Each GemEx certified diamond has been individually measured with the BrillianceScope┬« Analyzer.  The BrillianceScope is a patented imaging spectrophotometer developed by an electrical engineer, a mechanical engineer and a physicist to measure a diamond for bright white light (known as Brilliance), bright color light (known as Fire) and scintillation (known as Sparkle).

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Light Performance Certificate

Certified Brilliance, Fire and Sparkle 

Your customers want to buy beautiful diamonds.  With GemEx certified diamonds, you focus on what your customer wants in a diamond: superior brilliance, fire and sparkle. 

The traditional 4C information (Color, Clarity, Carat Weight, Cut) does not help to differentiate between a beautiful diamond and a diamond with inferior brilliance, fire and sparkle.  The 4C's define the rarity of a diamond.  However, the rarity of a diamond has almost nothing to do with the look or beauty of a diamond. 

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GemEx Live Report

The GemEx BrillianceScope Viewer

See and compare diamond beauty

What makes one diamond beautiful and another one dull is the way it  reflects and refracts light. With the BrillianceScope Viewer, you will see each diamond's Brilliance(white Light), Fire (Color Light) and Scintilation (sparkle). 

You will quickly see the dramatic Light Performance differences between diamonds.    

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GemEx Live Report

GemEx Live Report

View Interactive Diamond Images Online

Whether you are buying or selling diamonds, you and your customer can view the individual diamond's brilliance, fire and sparkle online.  You don't have to guess the performance.  You will see the actual performance on your computer, tablet and phone.     

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GemEx Live Report

GemEx Apps

Choose beautiful diamonds

Use GemEx Apps to make the best diamond decision for you and your customers.  Ensure your diamond has exceptional Brilliance, Fire and Sparkle. Use your phone, iPad, Facebook and more to see diamond beauty.  

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