Help
To place an order:
(877) 858-7201
fax (312) 922-3933
Chicago Corporate Office:
122 S.Michigan Avenue Suite 800
Chicago, IL 60603
(312)922-3800
Customer Service:
For web and phone customer service use the form below or email customerservice@ultradiamonds.com.
Customer service Hours:
Monday - Friday, 9 AM to 4 PM (CST); CLOSED on Saturdays/Sundays and National Holidays.
