Petra Diamonds Unearthed a 425-carat Rock at Cullinan

Petra Diamonds Unearthed a 425-carat Rock at Cullinan

$PDMDF, $RIO Shares in Petra Diamonds (LON:PDL, OTCMKT:PDMDF) jumped more than 8% Friday after the miner announced it had dug up a 425.1 carat, D-color, Type IIĀ gem quality diamond at its iconic Cullinan mine in South Africa. The discovery comes less than a month after Petra found a 100.83 carat gem-quality white diamond at the […]