The diamonds were sold at an average price of $804 per carat, it said.
The sale came as regular production of large specials continued at Lulo with latest recoveries including 85 carat and 52 carat diamonds.
The largest diamond weighed 44 carats in the sale parcel, which also included a vivid pink of 1.9 carats, the company said.
Lucapa said the latest sale brought gross proceeds from Lulo diamonds sales to date to $10.8 million at an average price per carat of $1,731.
Mathew Nyaungwa, Editor in Chief of the African Bureau, Rough&Polished