Where We Operate

Address:      67 E. Madison, suite 1610, Chicago, IL 60603-3014  
Phone:         800-621-5057     Local: 312-782-0365        Fax: 312-782-4553 
Questions:   director@nationaldiamond.com  
Website:      www.nationaldiamond.com       
Hours:         Monday – Friday  8:30am-5:00 pm CST.   Closed Saturday & Sunday

Strategic Alliance Partners:
2 Hoveniersstraat, Antwerp, Belgium
603 Dharam-Palace, Mumbai, India
Diamond Exchange Building, Ramat Gan., Israel


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Garry Zimmerman – Principal
GIA diamond certificate, BS in business, GIA colored stone and grading. Garry is our IT manager as well as an acclaimed jewelry designer. Trained in the technical marking of rough diamonds as well as the grading of polished diamonds. Garry is a third generation diamond dealer with over 34 years personal experience in the wholesale diamond industry.

Keith Zimmerman – Principal
Keith is our CFO and has over 33 years experience working with loose diamonds. He has a BA in economics from Vanderbilt University, handles the H.R. department and is the chief buyer. 

Richard Zimmerman – Principal
BA in Spanish and Sociology from Washington University, Richard has over 30 years experience in the diamond industry and is involved in all facets of our operation. Trained in diamond cutting, polishing, buying and selling, Richard also has a fine arts background and is very involved with our jewelry manufacturing, repair and custom design.

Sales: Gregory Boksa – Diamond & Jewelry Client Sales Representative
Gregory has been working in the jewelry industry for 38 years and has been with N.D.S. since 1986. His love and appreciation for our business shows in his care and attention to every request made by his clients.

Victor Kovacs – Diamond & Jewelry Client Sales Representative
Vic has been with N.D.S. since 1985 and has a BA in Political Science and minored in secondary education. He is meticulous in his work and always offers the finest service.

Lara Kunz, G.G. – Diamond & Jewelry Client Sales Representative
Lara has been working in the diamond and jewelry industry for 20 years and had designed jewelry for many of our clients. Lara has been with N.D.S. since 2001.

Manufacturing: Marcia Jacobson – Senior Production Manager
GIA and AGS degrees, Marcia’s training has been in the diamond and jewelry industry for over 30 years and with us since 2000. She has been taught by some of the finest jewelry designers and has a meticulous eye for detail. She carefully watches over every cad design and manufacturing job that goes through our shop.

Administration: Julie Williams – Office Manager
Julie is usually the first link in the chain when dealing with N.D.S. Working with us since 1994, she is usually the first voice that you will hear when calling in and the first person to greet you on our staff. All incoming and outgoing shipments are received and confirmed by Julie in addition to her duties in customer assistance. Julie also generates the invoices, memos and appraisals for our customers.

Shipping: Jessie Olvera – Shipping Manager
Jessie helps to facilitate all jobs and shop work that run through N.D.S., as well as overseeing all packing and shipping of merchandise to our clients. In addition to her duties, she is a backup for office administration and helps with the scanning of checks for accounting when needed and other general office duties. Jessie has been with N.D.S. since 2004.

Accounting:Elisabeth Zimmerman – Comptroller
Elisabeth maintains our bookkeeping department and oversees all accounting for N.D.S. She has a BA in mathematics and French Literature from Vanderbilt University. She also has a degree in accounting from Northwestern University.
Manufacturing: Denisse Romo - Cad Design Manager
Denisse is our chief cad designer. She is very capable and brings years of experience to our design staff.


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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