Shares of Petra Diamonds Limited (LON:PDL – Get Free Report) crossed below its 200-day moving average during trading on Thursday . The stock has a 200-day moving average of GBX 58.10 ($0.73) and traded as low as GBX 37 ($0.47). Petra Diamonds shares last traded at GBX 38 ($0.48), with a volume of 149,695 shares […]