The 470-carat top light brown cleavage diamond measures 49x42x26mm and it’s Lucara’s third diamond over 300 carats found this year.
Year to date, Karowe has produced 10 diamonds greater than 100-carats and six larger than 200 carats, including two high quality stones weighing 341-carats and 378-carats, both found in January.
It was recovered from the open pit mine’s South Lobe, specifically the EM/PK(S) unit.
Lucara, which owns 100 percent of Karowe, noted it’s recovered a string of large gem-quality stones recently, including five others topping 100 carats: a 265-carat diamond, a 183-carat stone, a 161-carat diamond, a 116-carat diamond, and a 106-carat diamond.
It’s also recovered 13 stones recently weighing between 50 and 100 carats.
Of its entire May production, focused in the EM/PK(S) unit, 12.7 percent of total production weight were diamonds weighing 10.8 carats or more.
Important diamonds like the 1,109-carat “Lesedi La Rona” Graff purchased for $53 million and the 1,758-carat “Sewelô” diamond Louis Vuitton is turning into a jewelry collection were discovered at Karowe.