Block Listing Six Monthly Return

22 June 2012

LSE: PDL

Name of company:

Petra Diamonds Limited

Name of schemes:

Petra Diamonds Limited 1997 and 2005 Share Option Plans

Period of return:

From 23 December 2011 to 22 June 2012

Balance of unallotted securities under schemes from previous return:

19,317,259

Number of shares issued under schemes during period :

2,159,079

Number of shares cancelled under the scheme during period:

35,002

Balance under schemes not yet issued at end of period:

17,123,178

Number and class of shares admitted under schemes and the date of admission:

19,317,259 (22 December 2011)

Petra Diamonds, London

Telephone: +44 20 7318 0452

Cathy Malins

cathym@petradiamonds.com

Buchanan

(PR Adviser)

Telephone: +44 20 7466 5000

Bobby Morse

James Strong

bobbym@buchanan.uk.com

jamess@buchanan.uk.com

RBC Capital Markets

(Sponsor and Joint Broker)

Telephone: +44 20 7653 4000

Joshua Critchley

joshua.critchley@rbccm.com

Martin Eales

martin.eales@rbccm.com

Canaccord Genuity Limited

(Joint Broker)

Telephone: +44 20 7523 8000

Rob Collins

rcollins@canaccordgenuity.com

Andrew Chubb

achubb@canaccordgenuity.com