1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Signet Group plc

2. Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An event changing the breakdown of voting rights

Other (please specify): 

3. Full name of person(s) subject to the notification obligation:

Artisan Partners Limited Partnership, Artisan Investment Corporation, ZFIC, Inc., Andrew A. Ziegler, Carlene M. Ziegler

4. Full name of shareholder(s) (if different from 3.)

State Street Bank, Bank of New York, Brown Brothers Harriman, Mellon Bank, Northern Trust

5. Date of the transaction and date on which the threshold is crossed or reached:

2 May 2008

6. Date on which issuer notified:

6 May/2008     

7. Threshold(s) that is/are crossed or reached:

Above 5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares

 if possible using the ISIN CODE

Situation previous to the Triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights ^viii

Number of shares

Number of voting rights ^ix

% of voting rights

Direct  ^x

Indirect ^xi

Direct

Indirect

GB00B1HTFP68

84,273,437

4.941%

86,935,333

5.097%

B: Financial Instruments

Resulting situation after the triggering transaction ^xii

Type of financial instrument

Expiration date ^xiii

Exercise/ Conversion  Period/ Date ^xiv

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

Total (A+B)

Number of voting rights

% of voting rights

86,935,333

5.097%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable ^xv:

Artisan Partners Limited Partnership (“APLP”), a U.S. registered investment adviser, is a limited partnership organized under the laws of the State of Delaware on December 8, 1994.  Control of APLP is vested in its general partner, Artisan Investment Corporation, a corporation organized under the laws of the State of Wisconsin on December 7, 1994.  All of the outstanding stock of Artisan Investment Corporation is owned by ZFIC, Inc., a corporation organized under the laws of the State of Wisconsin.  Andrew A. Ziegler and Carlene M. Ziegler each own 50% of the voting stock of ZFIC, Inc.  APLP, pursuant to advisory contracts, has the power to purchase and sell securities on behalf of its clients and the power to vote for most clients.  Persons other APLP are entitled to receive all dividends from, and proceeds from the sale of, all of the securities reported hereunder.

Proxy Voting:

10. Name of the proxy holder:

Artisan Partners Limited Partnership

11. Number of voting rights proxy holder will cease to hold:

N/A

12. Date on which proxy holder will cease to hold voting rights:

N/A

13. Additional information:

14. Contact name:

15. Contact telephone number: