|TO:||United States Securities and Exchange Commission|
|RE:||Technical report entitled Mineral Resource and Reserve Update, Diavik Diamond Mine, Northwest Territories, Canada Prepared for Harry Winston Diamond Corporation dated April 23, 2008 (the Technical Report)|
The undersigned, the author of the Technical Report, hereby:
Consents to the written disclosure of the Technical Report and of extracts from or a summary of the Technical Report in the annual information form dated April 23, 2012 issued and filed by Harry Winston Diamond Corporation (the 2012 AIF);
Consents to the use of my name in connection with the 2012 AIF, which is being filed as an exhibit to and incorporated by reference into the annual report on Form 40-F of Harry Winston Diamond Corporation being filed with the United States Securities and Exchange Commission (the Form 40-F) and the Technical Report which is being incorporated by reference into the Form 40-F;
Confirms that I have read the 2012 AIF and have no reason to believe that there are any misrepresentations in the information derived from the Technical Report or that 2012 AIF contains any misrepresentation of the information contained in the Technical Report.
DATED this 23rd day of April, 2012.
/s/ CALVIN G.
CALVIN G. YIP, P. ENG.