Welcome to American Diamond Exchange, Inc.

Diamonds & Fine Jewelry



Financing Made Easy!

Expert Ring Sizing Services


Custom Jewelry Design and Jewelry Repair Services 

We Offer Expert Diamond Setting Along With Diamond And Gemstone Replacement Services

American Diamond Exchange also has Laboratory Grown Diamonds In Stock

Is Your Jewelry Broken?  We Can Fix It - Does Not Fit, We Can Size It

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 Our headquarters are located at 1280 Whalley Avenue in New Haven, Connecticut 06515, in the USA, near Yale University. We operate our business in a building that we built at this location in 1985. Our facilities include our main diamond and fine jewelry showroom with private showroom offices. Our in-house Goldsmith Shop features expert jewelry repair services and custom jewelry design along with fabrication by our master goldsmiths and diamond setters. We have our own private parking lot, which is well lit and is conveniently located to provide you with easy direct access into our safe and secure building.

All transactions on our property are video and audio recorded

The staff of American Diamond Exchange is here to help you select that very special gift for the one you love for any occasion!  We have something exceptional for everyone!  Please visit our showroom, or shop with us online soon, so you too, can have a Sparkling Day!  We look forward to seeing you.

Find The Jewelry of Your Dreams!

We Offer financing through SNAP FINANCE

Click below to apply with the Quick and Easy Online Application


Financing Made Easy!

Expert Jewelry Appraisals

 Cash In your Unwanted Gold Jewelry Today!

At American Diamond Exchange, we utilize a scientific instrument to test and analyze the items that you are interested in selling to us.



The selling, evaluation and testing process is simple and quick with the help of our x-ray lab!  

Get Paid Today!




Browse our Estate Jewelry Collection!

Please click on any of the pictures below to browse our Estate Jewelry





American Diamond Exchange-Bulletin Board


October 14, 2018

 Charles W. Schnee 1926-2018   Sadly, on March 17, 2018, our father passed away.  We had just celebrated his 92nd. birthday together. Dad was a precious man, enormously loved and cherished by many.  

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Lee Barbera, Goldsmith

February 18, 2015

    Lee Barbera, Master Goldsmith. Lee, our loyal and dear friend has always been a cornerstone of American Diamond Exchange and our Goldsmith Shop. Lee joined the ADEX team more that 28 years ago. From day one, Lee put his heart and soul into American Diamond Exchange. His exceptional work ethic and skills continually improved and advanced all the services that American Diamond Exchange was able to offer our customers. Lee has an amazing ability to communicate with everyone. Lee's expertise has helped thousands of customers with jewelry repairs and custom designs throughout the years. Lee excels at hand crafted fabrication. His ingenious capacity to make just about any piece or part of jewelry has resolved countless jewelry repair issues....

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