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