FORM 6-K

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Special Report of Foreign Issuer

Pursuant to Rule 13a - 16 or 15d - 16 of
The Securities and Exchange Act of 1934

For the date of November 09, 2005

SIGNET GROUP plc
(Translation of registrant's name into English)

Zenith House
The Hyde
London NW9 6EW
England
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40F.

Form 20-F X      Form 40-F

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes         No X

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-

Signet Group plc

Application has been made to the UK Listing Authority for the block listing of 4,000,000 ordinary shares of 0.5 pence each in the
Company to the Official List and to the London Stock Exchange for these shares to be admitted to trading.

These shares will rank parri passu with the existing shares in issue and will be allotted in accordance with the exercise of options
under the rules of the Company's US Share Option Plan 2003 (3,600,000 shares) and the Long Term Incentive Plan (400,000 shares).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

                                                                 SIGNET GROUP plc

                                                               By: /s/ Walker Boyd

                                                               Name: Walker Boyd
                                                                              Title: Group Finance Director

Date:    November 09, 2005