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  Certified Diamonds

What we do

National Diamond Syndicate, Inc.

"The Most Trusted Name In Diamonds"

          National Diamond Syndicate, Inc. has been wholesale diamond brokers for almost 75 years.  Founded by Edgar Zimmerman and the late Harry Zimmerman. We are now run by the third generation of the Zimmerman family.

          Currently we manufacture, cut and import loose diamonds in many shapes and sizes including;

*Round   *Princess   *Oval   *Marquise   *Flanders Cut   *Emerald Cut  

*Trillion   *Cushion *Asscher Cut   *Radiant and    *Baguettes. 

Did we forget any?  Please ask, we may just have it, or check our available diamonds on the Diamond List page of this web site! Please keep in mind that this list changes daily so please ask if you don't see just what you are looking for.

         We are the exclusive U.S. distributor of the

Flanders Ideal Square Cut®.

• Certified Diamonds.
• Flanders Ideal Square Cut diamonds.
• Jewelry Manufacturer.
• Custom Manufacturing.
• Wax carving.
• Setting.
• Casting in all precious metals.
• Diamond Bag Jobs.
• Overnight shipping.
• No order is too small.
• It's important to you and you are important to us!