Why Choose National Diamond Syndicate, Inc.

                                    The Most Trusted Name In Diamonds”

There are many reasons to buy from National Diamond

and they all focus on You. After all, our most precious asset is our clients.

  • Competitive Pricing – This is our first priority.
  • Extensive Inventory – Our inventory is based on your needs. Most diamonds over 0.90 carats are certified by one of the major laboratories from around the world. For your convenience, our inventory runs the gamut from Round, Princess, Cushion, Radiant, Emerald Cut, Asscher, Oval, Pear, Marquise, Heart, Flanders and Trillion...Did we leave any out that you’re in need of? Just ask us!!
  • Accurate Grading – All certified diamonds, regardless of the laboratory, are meticulously checked by our own experts for accurate grading. When asked for information, you will always receive an accurate assessment of what we have to offer.
  • Service – No dealer in the country offers better service than N.D.S. We pride ourselves on our efficiency and accuracy.
  • Experience – National Diamond Syndicate, Inc. is a family owned business. Our staff, which has a long history in the diamond and jewelry industry, is extremely knowledgeable.
  • Courteous Staff - Our staff understands your needs and we speak your language. We build relationships with our customers and we appreciate the business that we are given.


We are family owned and operated since 1952 and are a manufacturer, cutter and importer of loose diamonds. We can also offer you the following services:

  • Cad Cam Design
  • Jewelry & Custom Manufacturing
  • Wax Carving
  • Casting & Setting
  • Repair Work
  • Diamond Picking
  • Large selection of loose melee with no minimum order
  • Overnight Shipping


National Diamond Syndicate, Inc.
67 E. Madison St. Suite 1610 • Chicago, IL 60603
Toll Free: 800-621-5057 • Phone: 312-782-0365
Fax: 312-782-4553
Email: director@nationaldiamond.com

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