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 September 07, 2007
 
SIGNET GROUP plc
(Translation of registrant's name into English)

15 Golden Square
London W1F 9JG
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-

NOTIFICATION OF TRANSACTIONS OF DIRECTORS, PERSONS DISCHARGING MANAGERIAL
RESPONSIBILITY OR CONNECTED PERSONS

This form is intended for use by an issuer to make a RIS notification required
by DR 3.1.4R(1).

(1)      An issuer making a notification in respect of a transaction relating to the shares or debentures of
         the issuer should complete boxes 1 to 16, 23 and 24.

(2)      An issuer making a notification in respect of a derivative relating to the shares of the issuer
         should complete boxes 1 to 4, 6, 8, 13, 14, 16, 23 and 24.

(3)      An issuer making a notification in respect of options granted to a director/person discharging
         managerial responsibilities should complete boxes 1 to 3 and 17 to 24.

(4)      An issuer making a notification in respect of a financial instrument relating to the shares of the
         issuer (other than a debenture) should complete boxes 1 to 4, 6, 8, 9, 11, 13, 14, 16, 23 and 24.

Please complete all relevant boxes in block capital letters.

1. Name of the issuer

Signet Group plc

2. State whether the notification relates to (i) a transaction notified in
accordance with DR 3.1.4R(1)(a); or

(ii) DR 3.1.4(R)(1)(b) a disclosure made in accordance with section 324 (as
extended by section 328) of the Companies Act 1985; or

(iii) both (i) and (ii)

(i) a transaction notified in accordance with DR 3.1.4R(1)(a)

3. Name of person discharging managerial responsibilities

George Malcolm Williamson

4. State whether notification relates to a person connected with a person
discharging managerial responsibilities/director named in 3 and identify the
connected person

-

5. Indicate whether the notification is in respect of a holding of the person
referred to in 3 or 4 above or in respect of a non-beneficial interest

Notification is in respect of a holding of the person referred to in 3 above.

6. Description of shares (including class), debentures or derivatives or
financial instruments relating to shares

0.9 cents US ordinary shares.

7. Name of registered shareholders(s) and, if more than one, the number of
shares held by each of them

As in 3 above.

8 State the nature of the transaction

Purchase

9. Number of shares, debentures or financial instruments relating to shares
acquired

33,000

10. Percentage of issued class acquired (treasury shares of that class should
not be taken into account when calculating percentage)

0.00193%

11. Number of shares, debentures or financial instruments relating to shares
disposed

-

12. Percentage of issued class disposed (treasury shares of that class should
not be taken into account when calculating percentage)

-

13. Price per share or value of transaction

GBP0.90 per share

14. Date and place of transaction

7 September 2007 - London

15. Total holding following notification and total percentage holding following
notification (any treasury shares should not be taken into account when
calculating percentage)

61,605 ordinary shares - 0.00361%

16. Date issuer informed of transaction

7 September 2007

If a person discharging managerial responsibilities has been granted options by
the issuer complete the following boxes

17. Date of grant

-

18. Period during which or date on which it can be exercised

-

19. Total amount paid (if any) for grant of the option

-

20. Description of shares or debentures involved (class and number)

-

21. Exercise price (if fixed at time of grant) or indication that price is to be
fixed at the time of exercise

-

22. Total number of shares or debentures over which options held following
notification

-

23. Any additional information

....................................

24. Name of contact and telephone number for queries

Mark Jenkins  0870 90 90 301

Name and signature of duly authorised officer of issuer responsible for making
notification

Mark Jenkins

Date of notification

7 September 2007
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:   September 07, 2007