Gem Diamonds has recovered a white diamond weighing 140 carats, the second over 100 carats it has reported this year.
It found the high-quality stone on July 6 at its Letšeng mine in Lesotho, the company said Monday. In March, it found a 161-carat white diamond at the deposit.
The miner recently recovered two yellow diamonds from Letšeng weighing more than 100 carats. It retrieved a 134-carat stone in March, and another weighing 135-carats last month.
So far this year, Gem Diamonds has recovered four diamonds over 100 carats. In 2018, it unearthed a total of 15.