Petra Diamonds Limited

("Petra" or the "Company")

Notification of Q1 FY 2018 Trading Update

Petra Diamonds Limited announces that its forthcoming Q1 FY 2018 Trading Update will be announced on Monday 23 October 2017.

A conference call to discuss the update with investors and analysts will be hosted at 9:30am BST on 23 October 2017 and a shorter call for international investors will be hosted later in the day at 4:00pm BST. Details of these calls will be included in the Trading Update announcement and will be available on the Company's website.

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For further information, please contact:

Petra Diamonds, London                                         Telephone: +44 20 7494 8203

Cathy Malins                                                               cathy.malins@petradiamonds.com 

Buchanan                                                                  Telephone: +44 20 7466 5000

(PR Adviser)

Bobby Morse                                                               bobbym@buchanan.uk.com

Anna Michniewicz                                                       annam@buchanan.uk.com

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 Ekapa Mining joint venture (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 and South Africa.

Petra has a core objective to steadily increase annual production to 5.0 - 5.3 million from FY 2019 onwards. 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 www.petradiamonds.com.