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Contact us now

Address

​​Mallers Building ​​​​

5 South Wabash Avenue,

Suite 315

Chicago, IL 60603

USA

 

Telephone

 

Phone: (312) 920-1541

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Hours: Monday - Thursday: 9:30-5:00  CST

             Friday - Saturday: By Appointment Only

​​

          Call or email to schedule an appointment

          We are also able to accommodate walk-in clients 

Professional Gem Sciences

Laboratory, Ltd.

​5 S. Wabash Avenue, Suite 315​

Chicago, IL 60603

   

© Copyright 2025  PGSL, Ltd.

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T: (312) 920-1541



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