Hours Of Operations Prometric California Diamond Bar Prometric Hours of Operation and Locations in Diamond Bar, CA 4.8 - 109 votes 1 Locations in Diamond Bar www.rometric.com Prometric Hours Category: Electronics Prometric - Diamond Bar, CA 91765 1241 Grand Ave, Ste F(909) 861-1146 View Store Details Explore Diamond BarView More Apparel Big LotsH & MCarharttCarter'sCatherines Sports TargetLA FitnessColemanAll American Sports ShopAll Sports Recommend For You Protrain Incorporated PS Consulting Quantilus Incorporated Quick Fix Incorporated Quickfix R & D Computer R Wayne Company Ramco Computer Corporation Readq Systems Incorporated Ready Data Incorporated