Senior Management Appointment

DiamondCorp plc JSE share code: DMC AIM share code: DCP ISIN: GB00B183ZC46 (Incorporated in England and Wales) (Registration number 05400982) (SA company registration number 2007/031444/10) ('DiamondCorp' or 'the Company')

SENIOR MANAGEMENT APPOINTMENT

DiamondCorp plc, the African diamond mining and exploration company, is pleased to announce that it has strengthened its management team with the appointment of Mr Keith McCulloch as General Manager of the Lace mine.

Mr McCulloch's primary responsibility will be the implementation of the decline and mine development plan designed by Snowden Mining Industry Consultants.

Mr McCulloch, who will report to the chief operating officer, is a highly experienced mining engineer with almost 30 years experience in underground and opencast mining operations in South Africa, Zimbabwe and Swaziland, predominantly in the diamond sector. Mr McCulloch was most recently General Manager, North West for Namakwa Diamonds Limited.

London

6 May 2010

AIM Nomad: Cenkos Securities plc AIM Brokers: Cenkos Securities plc and Fairfax I.S. plc

Investment Bank and Sponsor: Investec Bank Limited DiamondCorp plc, Paul Loudon +44 20 7256 2651 Ivonne Cantu / Liz Bowman, Cenkos Securities plc +44 20 7397 8900 Ewan Leggat, Fairfax I.S. plc +44 207 598 5368 Robert Smith, Investec Bank Limited +27 11 286 7326 Charmane Russell/Matthew Ross, Russell & Associates +27 11 880 3924 Ana Ribeiro/Tim Blythe, Blythe Weigh Communications +44 20 7138 3204