Holding(s) in Company

Diploma PLC
16 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



16 November 2004


Dear Sirs,

We have receieved a letter today from Fidelity International Limited
notifying their interest in 4.85% of our issued share capital.


Yours faithfully

NP Lingwood

Company Secretary




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