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Block admission and block admission return

17 March 2010

Name of company:	Petra Diamonds Limited
Name of scheme:	Petra Diamonds Limited 2005 Share Option Plan
Period of return:	From 14 December 2007 to 17 March 2010
Number of shares not issued under scheme at the end of the last period:	71,000
Number of shares issued under scheme during period:	0
Number of shares cancelled under the scheme during period:	0
Balance under scheme not yet issued at end of period:	71,000
Number and class of shares originally admitted under scheme and the date of admission:	100,000 14 June 2007

Petra has made an application to the AIM Market of the London Stock Exchange for the block admission of up to 3,000,000 additional ordinary shares of £0.10 each in the Company to satisfy obligations under the Company's 2005 Share Option Plan. These shares will be allotted and issued in due course in accordance with the rules of the option plan and will rank pari passu in all respects with the existing ordinary shares in issue.

The Company currently has 352,569,186 ordinary shares of £0.10 each in issue.

For further information, please contact:

Bobby Morse / Katharine Sutton
Telephone: +44 20 7466 5000
Buchanan Communications
bobbym@buchanan.uk.com / katharines@buchanan.uk.com

Nicola Taylor
Telephone: +27 11 880 3924
Russell & Associates
nicola@rair.co.za

Mike Jones / Ryan Gaffney
Telephone: +44 20 7050 6500
Canaccord Adams (NOMAD and Joint Broker)
mike.jones@canaccordadams.com
ryan.gaffney@canaccordadams.com

Joshua Critchley / Martin Eales
Telephone: +44 20 7653 4000
RBC Capital Markets (Joint Broker)
joshua.critchley@rbccm.com
martin.eales@rbccm.com