Notice of Trading Update

Petra Diamonds Limited

(the "Company")

Notice of Trading Update

Petra Diamonds Limited announces that its forthcoming Q1 FY 2016 Trading Update will be announced on Wednesday, 28 October 2015.

A conference call to discuss the Trading Update with analysts and investors will be held at 9:30am GMT on Wednesday, 28 October 2015, with an additional call at 4:00pm GMT to cater for international investors. Details of both conference calls will be available in the announcement.

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For further information, please contact:

Petra Diamonds, London Telephone: +44 20 7494 8203

Cathy Malins [email protected]

Cornelia Grant [email protected]

Buchanan Telephone: +44 20 7466 5000

(PR Adviser)

Bobby Morse [email protected]

Anna Michniewicz [email protected]

RBC Capital Markets Telephone: +44 20 7653 4000

(Joint Broker)

Matthew Coakes [email protected]

Jonathan Hardy [email protected]

Barclays Telephone: +44 20 7623 2323

(Joint Broker)

Bertie Whitehead [email protected]

Philip Drake [email protected]

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 mines: four in South Africa (Finsch, Cullinan, Koffiefontein and Kimberley Underground) and one in Tanzania (Williamson). It also maintains an exploration programme in Botswana.

Petra has a core objective to steadily increase annual production to ca. 5 million carats by FY 2019. The Group has a significant resource base of ca. 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 member of the FTSE 250. For more information, visit the Company's website at www.petradiamonds.com.