About Us

 Welcome to American Diamond Exchange, Inc.

Where Dreams Come True! 

Diamonds & Fine Jewelry

Custom Jewelry Design and Jewelry Repair Services

American Diamond Exchange Also Has Laboratory Grown Diamonds In Stock

Please call or text us at 203-397-8068

Find The Jewelry Of Your Dreams!

Expert Jewelry Appraisals 

We Buy Gold

Sell Us Your Gold 

Cash In your Unwanted Gold Jewelry Today! 

The Selling, Evaluation And Testing Process Is Simple And Quick With The Help Of Our X-Ray Lab!  

Get Paid Today!

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. 

Find the jewelry of your dreams! 

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.
You’ll be amazed and impressed by our staff of experienced experts.  You will love working with Kathleen.  She is a remarkable person with extensive talent. Kathleen is a Graduate Gemologist from the Gemological Institute of America.  She has over 30 years experience with the American Diamond Exchange. Kathleen is an expert at helping you select the perfect gift, tailor-made for that memorable celebration.  She will also put a big smile on your face with her extraordinary gift wrapping talent. Kathleen also does diamond, fine jewelry and estate appraisals by appointment.  You can also be sure to find expert advice and services available from David.
 We can offer you many ideas in custom-design, and of course are happy to fully accommodate any special requests.  Let our design staff help you create a one of a kind piece of jewelry that you’ll treasure forever.  Our jewelers can render custom drawings to show you various alternative designs.  We then can make for you whatever you have in mind, whether it is remodeling your existing piece of jewelry, or creating one of the brand new designs that you choose.  We are experts in designing and creating custom-built jewelry, wedding bands and diamond mountings. Come visit us and see how beautiful jewelry can be.

Our Many Facets

Our gracious and competent sales staff will provide you with a very enjoyable shopping experience.  We do not sell on a commission basis and are only interested in providing you with a first class personal shopping experience.  You will be happy that you have found American Diamond Exchange and will feel quite comfortable doing business with us.  When you make a new purchase in our showroom or online on our website it is always presented in beautiful gift packaging.  It will be our pleasure to also gift wrap your items at no additional cost if you like.

Through our professional work ethic, personalized attention, highest quality craftsmanship, exceptional selection and prices, we think you’ll find us very engaging.  Our family business has worked hard to earn our excellent reputation prized now for over 60 years.