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Andrea Mattei

Andrea Mattei, GIA GG, AJP

Andrea has been running Judith Ansteth Jewelers since 1997. Andrea is a GIA Graduate Gemologist, GIA Accredited Jewelry Professional and has completed the JBAR Jewelry Appraisal Course. She served 3 terms on the board of directors of the Women's Jewelry Association-Midwest Chapter 2001-2004. With her master's degree in Graphic Design from the Portfolio Center in Atlanta, GA and her extensive knowledge about diamonds, gems and the manufacturing process, she's a qualified professional who can help you design your next family heirloom.

What We Do


Judith L. Ansteth Jewelers specializes in custom made and custom designed fine jewelry, loose diamonds and gemstones. We design all types of jewelry but primarily engagement rings and wedding bands. We have a large inventory of one-of-a-kind jewelry created by Judith and Andrea as well as offering expert jewelry design services. If we don't have exactly what you are looking for in stock, our expert designers and craftsmen can make it for you right here in Chicago. And if you have outdated jewelry, our in-house designer can re-style your gems and gold to create a new one-of-a-kind piece of jewelry, just for you. With our friendly and knowledgeable service, our clean and relaxed office and showroom, we strive to make you feel comfortable and confident about your jewelry purchase.

2 diamond engagement rings and a loose square diamond
Andrea Mattei and Judith Arnell


Judith L. Ansteth Jewelers is a second generation family owned and operated business you can trust. Judith Arnell, the owner of Judith L. Ansteth Jewelers has been in the jewelry business since 1972. Judith was one of the founders of the Women's Jewelers Association, Midwest Chapter and has been actively involved in the Gemological Institute of America and the American Gem Society. In 1996 Judith moved to the West Coast and opened another store, Judith Arnell Jewelers, in downtown Portland.


My proposal to Sarah went very well and she loves, loves, loves the ring!  It really is stunning and I’m so happy and fortunate to have been introduced to you. I wouldn’t change a thing. 

--Scott S

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