Gem Diamonds has recovered a 161-carat rough stone, the first over 100 carats it has reported this year.
It found the high-quality, white, type IIa diamond on March 21 at its Letšeng mine in Lesotho, the company said Friday.
Last year, Gem Diamonds found 15 stones weighing more than 100 carats, a record for the company. That haul included the 910-carat Lesotho Legend, which sold for $40 million.
In February, the miner also found a 13.33-carat pink diamond, which it sold to Graff for $8.8 million, or $656,933 per carat.
Image: The 161-carat diamond. (Gem Diamonds)