Holding(s) in Company

Diploma PLC
07 October 2004


                                  DIPLOMA PLC
                        20 Bunhill Row, London EC1Y 8UD
              (Registered in England No. 3899848 at above address)
                    Telephone: [phone] Fax: [phone]



Company Announcements Office, London Stock Exchange

No. of pages inc. this one: 1


7 October 2004

Dear Sirs,

We received a letter today from Fidelity International Limited and its
subsidiary Fidelity Investment Services Ltd notifying their interest in 8.90% of
our issued share capital.


Yours faithfully

Nigel Lingwood


NP Lingwood
Company Secretary




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