Petra Diamonds Limited

("Petra", "the Company" or "the Group")

Total Voting Rights

Petra Diamonds Limited today announces that in conformity with the Transparency Directive, Petra's issued share capital as at 22 June 2017 consisted of 531,986,218 ordinary shares of 10p each ("Ordinary Shares") with voting rights. No Ordinary Shares are held in treasury. Therefore, the total number of voting rights in Petra is 531,986,218.

The above figure of 531,986,218 Ordinary Shares may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in (or a change to their interest in) Petra under the FCA's Disclosure and Transparency Rules.

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For further information, please contact:

Petra Diamonds, London                                         Telephone: +44 20 7494 8203

Cathy Malins                                                               cathy.malins@petradiamonds.com 

Cornelia Grant                                                             cornelia.grant@petradiamonds.com 

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About Petra Diamonds Limited

Petra Diamonds is a leading independent diamond mining group and an increasingly important supplier of rough diamonds to the international market. The Company has interests in five producing operations: three underground mines in South Africa (Finsch, Cullinan and Koffiefontein), the Kimberley Operations (including the Kimberley Underground mine and extensive tailings retreatment operations) and one open pit mine in Tanzania (Williamson). It also maintains an exploration programme in Botswana.

Petra has a core objective to steadily increase annual production to ca. 5.3 million carats by FY 2019. The Group has a significant resource base in excess of 300 million carats.

Petra conducts all operations according to the highest ethical standards and will only operate in countries which are members of the Kimberley Process. Petra is quoted with a premium listing on the Main Market of the London Stock Exchange under the ticker 'PDL' and is a constituent of the FTSE4Good Index. For more information, visit the Company's website at www.petradiamonds.com.