Crown Merger Update

Petra Diamonds Ld
25 May 2005


                              Petra Diamonds Limited

        Proposed merger with Crown Diamonds NL ('Crown') ('the Merger')


Petra Diamonds Limited ('Petra') (LSE: PDL), the AIM-quoted diamond mining
group, is pleased to announce that at the Crown Scheme Meetings held earlier
today in Australia all necessary shareholder and loan note holder resolutions
regarding the Merger were passed.

As previously announced, the Schemes of Arrangements are subject to approval by
the Supreme Court of Western Australia. The court date to consider such approval
is set for 31 May 2005.

Completion of the Merger remains conditional, inter alia, on approval by Petra
shareholders at the Extraordinary General Meeting to be held at 10.00 a.m. today
at the offices of Memery Crystal, 44 Southampton Buildings, London, WC2A 1AP.


For further information, please contact:

       David Abery                           Cathy Malins/Annabel Leather
       Petra Diamonds, South African office  Parkgreen Communications, London
       Tel: [phone]                  Tel: [phone]

       Frank H. Moxon                        Karl Paganin / Michael Soucik
       Williams de Broe Plc, London          Euroz Securities, Perth
       Tel: [phone]                 Tel: [phone]

       In South Africa:                      In Australia:

       Johan Dippenaar                       John Baillie
       CEO and Director                      Director
       Crown Diamonds NL                     Crown Diamonds NL
       Tel: [phone]                   Tel: [phone]
       Fax: [phone]                  Fax: [phone]

                                             Duncan Gordon
                                             Baker Young Stockbrokers
                                             Adelaide
                                             Tel: [phone]

                                             Kevin Skinner
                                             Field Public Relations
                                             Tel: [phone]
                                             Mobile: [phone]



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