Petra Diamonds Limited has sourced a 39.19 carat special blue diamond from the Cullinan mine in South Africa, the singular mine prized for its reserves of highly valued blue diamonds. The 39.19 carat stone has been included into Petra’s tender in Johannesburg, South Africa. It is available for viewing by buyers at the offices of SADIAMEX (Meyer Diamonds), in the Diamond Centre in Johannesburg, South Africa. %% Petra has targeted to increase its overall annual diamond production from 200,000 carats in the year to June 2008 to over 1 million carats in the year to June 2009. Presently, it operates four additional mines in South Africa, namely - Koffiefontein, Helam, Sedibeng and Star. It is in the process of acquiring two mines from De Beers – the Kimberley Underground mines, also in South Africa, and the Williamson mine in Tanzania.