Where can I buy GemEx certified diamonds?


Tell us your diamond story


Gary Gordon - Samuel Gordon Jewelers
“Most jewelers tell customers about color, cut and clarity, but that sort of talk misses the point, and worse, it intimidates people. Basically the GemEx System gets the technical issues off the table quickly and allows us to talk about brilliance, fire and sparkle and women love those words. Customers don’t want to listen to a sales pitch and now they can buy with their eyes instead of ears.”

Stephanie Karen Munn - Diamond Consumer

"Ever since I purchased my first Gemex certified ring, I have not bought any more diamond jewelry without it!   I am truly convinced that diamonds bought without a Gemex certificate isn't worth the other papers that diamond may have."

Jonathan Weingarten - GoodOldGold
“Working with ... the BrillianceScope™... I can say with all confidence that the results you see there confirm the beauty that’s beheld with the human eye.”

E-mail From Dave Mossington — Satisfied Diamond Consumer
“I just wanted to thank you for making my life easier. I based my entire decision on the results of the BrillianceScope™! It’s a truly remarkable product that will surely change the industry.”

Brad Roshto - Diamond Brokers of Fla.
“The BrillianceScope™ runs a sequence of light analysis. I’ve seen both the firescope and the BrillianceScope™ in action, and find the BrillianceScope™ to be a far superior instrument, and objective too. It doesn’t care who cut the diamond, or who your friends are, or where you bank at. I think consumers will like this feature as well as I do.”

Gary Roskin - Diamond Notes
The forth C, cut, has always been described in mathematical terms and until recently has been based on Marcel Tolkowsky’s formula for the ideal brilliant. Presenting this theory to customers has not really helped them decide which diamond actually looks best. The computerized BrillianceScope™ enables you to show them a picture of how the diamond reacts to light and compare it with another diamond that, on paper, may seem to be equal. The BrillianceScope™ can help demonstrate that two diamonds of “Ideal” proportions can differ significantly in brilliance and scintillation, and therefore in beauty.

DiamondTalk.com — Question from a diamond consumer
How about the BrillianceScope™?
Do the numbers generated by this instrument reflect the sparkle as seen by the naked eye? If so, can the readings from this instrument be used to gauge the look of a diamond for a net purchase?
Answer From Jan Roshto Diamond Brokers of FLA “YES and Yes”
Answer From Jonathan Weingarten GoodOldGold “Yes, absolutely”

DiamondTalk.com — Quote from a diamond consumer
“As a rank amateur having just purchased my first “real” diamond after some pretty extensive research, I have to agree... the brilliancescope... (is a)... tool... for judging the quality of the diamonds... I did find a couple of very expensive stones that did not score VH’s, and yes when those stones were put side by side with a diamond that was in the VH range I could distinguish the difference.”

David S. Diamonds Everyone wants to purchase a beautiful diamond with a brilliant sparkle that will get wows at cocktail parties. The question is: "How do you empirically measure the beauty of a diamond to ensure the wow effect"?… especially given that most jewelers display diamonds under ideal lighting conditions which make all their diamonds look beautiful. The one that caught your eye in the store may not have the same sparkling beauty in different lighting environments (e.g. - when you bring it home, wear it outside, etc.). This is the dilemma all diamond consumers must face. READ MORE

Samuel Gordon’s Jewelers Cut Matters!!  A diamonds beauty is subjective and has always been a point of controversy.  The beauty is dependent upon a number of factors such as brilliance, scintillation, fire, brightness, sparkle etc.  READ MORE

Good Old Gold GemEx Article: In this article we'll explore what is perhaps the 2nd most popular technology in use via the net.  READ MORE

Forever10 Diamonds Within the last decade, diamond statistics have undergone the most sweeping and dramatic changes in history. The famous four C’s have taken a back seat to light performance. Diamond beauty is now largely defined as a trinity of three factors: brilliance, fire and sparkle.