Patrick Fay, Owner
29 East Madison Street
Chicago, IL 60602
Phone: 877-795-1101 (within US) or 1-312-795-1100 (Outside the U.S.)
Appointment Hours: By Appointment Only, Monday – Friday, 1 PM – 6 PM Central Standard Time. We are closed on weekends.
Business Hours: Monday – Friday, 11 AM - 7 PM Central Standard Time. We are closed on weekends.
Email Us at Anytime:
We welcome ALL your inquiries and have answers to ALL of your questions. We are the experts in clarity enhanced diamonds. We know our diamonds well and can assist you in selecting the perfect diamond. Our hours of operation are by appointment only 1pm-6pm Central standard time. If you reach our voice mail please make sure to leave us a message, and we will return your call ASAP. You can also email us at diamonds@BigDiamondsUSA.com or chat with us live using our Live Support. You can also submit us a message using our Comment Box (just click below)