Gem Diamonds has recovered a 135-carat yellow at its Letšeng mine in Lesotho, the third significant colored-diamond discovery at the deposit this year.
The company retrieved the high-quality, type I stone on June 21, three months after the mine yielded a similar quality yellow diamond weighing 134 carats. Those discoveries follow a two-year gap in the recovery of yellow diamonds weighing more than 100 carats from Letšeng. In June 2017, the miner found a 151.52-carat yellow.
Gem Diamonds also unearthed a 13.33-carat pink diamond in February, which it sold to Graff the following month for $8.8 million, or $656,933 per carat. In 2018, the company mined a record 15 stones weighing more than 100 carats.
Image: The 135-carat yellow diamond. (Gem Diamonds)