Announcements

• 2010
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• 2005

Nomad and Joint Broker Change of Name

11 May 2010

Petra Diamonds Limited announces that the Company’s Nominated Adviser and Joint Broker has undertaken a change of name from Canaccord Adams Limited to Canaccord Genuity Limited following the acquisition by its parent company, Canaccord Financial Inc., of Genuity Capital Markets, a leading independent advisory and restructuring firm in Canada.

For further information, please contact:

Cathy Roberts
Telephone: +44 20 7318 0452
Petra Diamonds, London
cathyr@petradiamonds.com

Bobby Morse / James Strong
Telephone: +44 20 7466 5000
Buchanan Communications
bobbym@buchanan.uk.com / jamess@buchanan.uk.com

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

About Petra Diamonds

Petra Diamonds is a leading supplier of rough diamonds, with a gross resource base of 262 million carats. The Company offers a unique growth profile within the diamond sector, increasing its annual production fivefold in the year to June 2009 to over one million carats, and with firm plans in place to grow production to over three million carats.

In South Africa, Petra has interests in five producing mines – Cullinan, Koffiefontein, Helam, Sedibeng and Star - and has also agreed to acquire the Kimberley Underground mines from De Beers (this acquisition is expected to complete soon). In Tanzania, Petra has an interest in the Williamson mine.

Petra conducts all its operations according to the highest ethical standards, and will only work in countries which are members of the Kimberley Process. The Company is quoted on the AIM market of the London Stock Exchange (AIM: PDL).