Holding(s) in Company

Diploma PLC
08 November 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



8 November 2004


Dear Sirs,

We enclose a copy of a letter received today from Fidelity International Limited
notifying their interest in 6.81% of our issued share capital.


Yours faithfully

NP Lingwood

Company Secretary




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