 Anglo American PLC LON:AAL said about US440mln of rough diamonds were provisionally sold in the De Beers Groups third sales cycle of 2021, in line with expectations, but warned Coronavirus COVID-19 challenges continue. Following a good holiday season and that trend continuing during the first quarter of 2021, we have again seen solid demand for rough diamonds as we begin a traditionally quieter period of the year for the diamond industry, said De Beers chief executive Bruce Cleaver. 