Lucara Diamond has recovered a 341.9 carat gem quality diamond from its Karowe Mine in Botswana, the company said in a statement.
The stone was recovered while processing fragmental kimberlite from the central and south lobe interface.
The Type IIa diamond shows exceptional colour and clarity and will be sold along with two other greater than 100 carat diamonds which have also been recovered.
Lucara is a diamond producer operating in Karowe Mine in Botswana and Mothae Project in Lesotho. The 100% owned Karowe Mine is in production. The 75% owned Mothae Project has completed its trial mining program.