Diamond K Supply Ltd. Diamond K Supply Ltd.3671 Mt. Diablo BlvdLafayette CA 94549 USAPhone: 925-284-4477Url: http://www.diamondk.comMonday9:00 AM - 5:00 PMTuesday9:00 AM - 5:00 PMWednesday9:00 AM - 5:00 PMThursday9:00 AM - 5:00 PMFriday9:00 AM - 5:00 PMSaturdayClosedSundayClosed