[1] DIC is a post-nominal award that is issued by Imperial College London to postgraduate students who successfully complete the PhD, EngD, MD(Res), MSc, MRes, MBA, MPH, MEd or MPhil degree.
[2] For example, Brian May PhD DIC implies that the student was awarded a PhD from the University of London / Imperial College and the DIC from the Imperial College London.
The DIC is typically jointly awarded to degree students satisfactorily completing a minimum of one year's postgraduate work consisting of research and advanced study.
Imperial also hosts visiting students from institutions outside the UK who attend classes and complete courses at the college.
For example, students from the French engineering school Centrale Paris are eligible for the diploma, granted they pass all the modules.