Contact Us Are you interested in learning more about our services and solutions? Name Phone Email Address Message Number 11 + 15 = Submit CORPORATE HEADQUARTERS 1850 Putman Pkway Milton, WI 53563 877-398-4266 buyback@diamondassets.com HOURS OF OPERATION Monday – Friday 8:00 am – 4:30 pm CST Our Sourcing and Procurement team is ready deliver exceptional service!