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 February 4, 2004
 
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-

SCHEDULE 10

NOTIFICATION OF MAJOR INTERESTS IN SHARES
1) Name of company

SIGNET GROUP plc

2) Name of shareholder having a major interest

HARRIS ASSOCIATES L.P.

3) Please state whether notification indicates that it is in respect of
holding of the shareholder named in 2 above or in respect of a
non-beneficial interest or in the case of an individual holder if it is a
holding of that person's  spouse or children under the age of 18

AS IN 2 ABOVE

4) Name of the registered holder(s) and, if more than one holder, the
number of shares held by each of them

Oakmark International Fund	40,503,600	
Harris International LP	6,144,000	
Met Fund	4,382,000	
BMG Foundation	3,730,000	
IL Teachers Retirement System	3,170,000	
Nuclear	3,098,000	
MMIF Overseas	2,041,000	
Pennysylvania	1,991,000	
MetLife Concentrated International	1,297,000	
Schwab International MarketMasters Fund	1,060,000	
Illinois Teachers	685,100	
Boise Cascade	400,000	
Levi Strauss & Co US Pension	382,000	
AGF Harmony Fund	346,000	
CDC Nvest Star International	332,900	

5) Number of shares/amount of stock acquired

2,181,000

6) Percentage of issued class

0.126

7) Number of shares/amount of stock disposed

N/A

8) Percentage of issued class

N/A

9) Class of security

0.5P ORDINARY SHARES

10) Date of transaction

30.01.04

11) Date company informed

03.02.04

12) Total holding following this notification

69,562,600

13) Total percentage holding of issued class following this notification

4.03%

14) Any additional information

-

15) Name of contact and telephone number for queries

ANNE KEATES
0870 909 0301

16) Name and signature of authorised company official responsible for
making this notification

Date of notification ..4 February 2004..

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:   February 4, 2004