Professional Gem Sciences
An Independent Laboratory for the study and
Grading of Diamonds, Gemstones and Jewelry
Our Contact Information:
5 S Wabash Avenue, Suite 1905
Chicago, IL 60603
Phone: (312) 920-1541
Fax: (312) 920-1547
|
We thank you for your interest in Professional Gem Sciences.
Should you have any questions for one of us.
We would be glad to answer your email.
Accounting@ progem.com
myriam@progem.com
|
