Suggest an Edit Name* Categories* Arts & Entertainment Automotive Business Services Computers & Electronics Construction & Contractors Education Food & Drink Health & Beauty Home & Gardens Industry & Agriculture Landmarks Legal & Financial Organisations & Government Pets & Animals Real Estate Report a problem Shopping & Services Sports & Recreations Travel & Accommodation Add category State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 05:00 pm Tuesday: 09:00 am — 05:00 pm Wednesday: 09:00 am — 05:00 pm Thursday: 09:00 am — 05:00 pm Friday: 09:00 am — 05:00 pm Saturday: 09:00 am — 05:00 pm Company description Diamond Source is business services based in England. Diamond Source is located at 145 - 157 St John Street , London EC1V 4P , England , United Kingdom. You can find Diamond Source opening hours, address, driving directions and map, photos and phone numbers 0800 677 1012. Find helpful customer reviewsand write your own review to rate the business service.</br> Your comments (not for publishing) * — Required information Diamond Source ← View details 145 - 157 St John Street , London EC1V 4P , England , United Kingdom, London, England EC1V 4P 0800 677 1012