Lab also rolling out new comments clarifying impact of fluorescence.
Category: Mining
Move follows similar transaction in May for $999,000 worth of diamonds.
Criticism comes after company places deposit under business rescue and states it will lay off workers.
Interview with Debswana CEO Andrew Maatla Motsomi.
Anglo American moves forward with the sale of its 85% share in the diamond producer.
Stones above 10.80 carats and fancy-color goods dominated May sales.
Deposit will go on care and maintenance from July.
Company intends to focus on higher-value stones at Cullinan, which are in greater demand during prolonged industry downturn.
Pulling stock off public trading gives miner more flexibility for restructuring or going private.
Average amount per carat up 42% year on year at $1,501.