Petra to host first tender of Willamson diamonds since mine’s restart
London-listed Petra Diamonds will hold the first tender of rough diamonds recovered from the Williamson mine, in Tanzania, since the restart of operations, later this month. The mine was placed on care and maintenance in April 2020 in order to preserve its liquidity, at a time when diamond pricing was impacted by the Covid-19 pandemic. Operations resumed in the quarter ended September 30.