Lucapa has recovered a top-quality 64-carat from its Mothae kimberlite mine in Lesotho.
The Australia-based miner says it's a D-colour Type IIa gem.
It brings to 12 the number of +50 carat diamonds recovered from the mine since commercial production started in January 2019.
There have also been three +100 carat diamonds from Mothae, which yielded over 30,000 carats in its first year of production.
Other significant recoveries include a rare 0.3 carat blue gem.