HWD Dominion Diamond Corporation

CUSIP No. 41587B100            Schedule 13G                 Page 2 of 5 Pages
          -----------        --------------

1.       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         M&G Investment Management Limited
         No I.R.S Identification Number
--------------------------------------------------------------------------------
2.       CHECK THE APPROPRIATE BOX IF THE MEMBER OF A GROUP*
                                                                 (a)  [ ]
                                                                 (b)  [ ]
--------------------------------------------------------------------------------
3.       SEC USE ONLY
--------------------------------------------------------------------------------
4.       CITIZENSHIP OR PLACE OF ORGANIZATION
         United Kingdom, England
--------------------------------------------------------------------------------
                     5.   SOLE VOTING POWER
NUMBER OF                 0
SHARES              ------------------------------------------------------------
BENEFICIALLY         6.   SHARED VOTING POWER
OWNED BY                  4,135,800

EACH                ------------------------------------------------------------
REPORTING            7.   SOLE DISPOTIVE POWER
PERSON                    0
WITH                ------------------------------------------------------------
                     8.   SHARED DISPOTIVE POWER
                          16,628,400
--------------------------------------------------------------------------------
9.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         16,628,400
--------------------------------------------------------------------------------
10.      CHECK BOX IF AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
         SHARES*                                              [_]
--------------------------------------------------------------------------------
11.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
         19.59%
--------------------------------------------------------------------------------
12.      TYPE OF REPORTING PERSON
         IA
--------------------------------------------------------------------------------












CUSIP No. 41587B100          Schedule 13G                 Page 3 of 5 Pages
          -----------        --------------
Item 1(a).   Name of Issuer:

                  Harry Winston Diamond Corp

Item 1(b).   Address of Issuer's Principal Executive Offices:

PO Box 4569, Station A, Toronto, ON MSW 4T9  Canada

Item 2(a).   Name of Person Filing:

              1.  M&G Investment Management Limited (MAGIM)

Item 2(b).   Address of Principal Business Office or, if None,
             Residence:

                  Governor's House, Laurence Pountney Hill, London, EC4R 0HH

Item 2(c).   Citizenship:

                  United Kingdom, England

Item 2(d).   Title of Class of Securities:

                  Common Stock

Item 2(e).   CUSIP Number:

                  41587B100

Item 3.         Type of Person:
         MAGIM is an investment advisor in accordance with
         s.240.13d-1(b)(1)(ii)(E)

Some of the securities covered by this report are owned legally by
Vanguard Inc., MAGIMs investment advisory client. MAGIM has sole
investment power and no voting power in these securities.

All the securities covered by this report are legally owned by
MAGIM's Investment advisory clients, and none are owned directly by
MAGIM.

Item 4.      Ownership.
             Provide the following information regarding the aggregate
             number and percentage of the class of securities of the issuer
             identified in Item 1.

(a) Amount Beneficially Owned: M&G, in its capacity as investment manager,
      may be deemed to beneficially owned: 16,628,400 shares

        (b)  Percent of Class: 19.59%

         M&G Investment Management Limited
               (i)    sole power to vote or to direct the vote  0
                                                                ----------
               (ii)   shared power to vote or to direct the
                      vote                                      4,135,800
                                                                ----------
               (iii)  sole power to dispose or to direct the
                      disposition of                            0
                                                                ----------
               (iv)   shared power to dispose or to direct the
                      disposition of                            16,628,400
                                                                ----------





















CUSIP No. 41587B100          Schedule 13G                 Page 4 of 5 Pages
          -----------        --------------

Item 5.      Ownership of Five Percent or Less of Class.
             If this statement is being filed to report the fact that as of the
             date hereof the reporting person has ceased to be the beneficial
             owner of more than five percent of the class of securities, check
             the following

             Not applicable.

Item 6.      Ownership of More than Five Percent on Behalf of Another
             Person.

             Not applicable.

Item 7.      Identification and Classification of the Subsidiary Which
             Acquired the Security Being Reported on by the Parent Holding
             Company.

             Not applicable.

Item 8.      Identification and Classification of Members of the Group.


             Not applicable.


Item 9.      Notice of Dissolution of Group.

             Not Applicable








CUSIP No. 41587B100           Schedule 13G                 Page 5 of 5 Pages
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Item 10.     Certification.
             -------------

          (a) The following certification shall be included if the statement
          is filed pursuant to Rule 13d-1(b):

          "By signing below I certify that, to the best of my knowledge
          and belief, the securities referred to above were acquired
          and are held in the ordinary course of business and were not
          acquired and are not held for the purpose of or with the
          effect of changing or influencing the control of the issuer of
          the securities and were not acquired and are not held in
          connection with or as a participant in any transaction
          having that purpose or effect. "

           SIGNATURE











           After reasonable inquiry and to the best of my knowledge and belief,
         I certify that the information set forth in this statement is true,
         complete and correct.


         By:  --//Mark Thomas//--
         --------------------------------------
         Name:    Mark Thomas
         Title:   Head of Notifiable Reporting
         Date:    February 11, 2013