According to Mining News Pro - The 166-year-old fashion house, which announced last week it was the new owner of the Sewelô diamond, meaning “rare find” in Southern Africa’s Setswana language, will now leave it in the hands of Belgium’s HB.

The Antwerp-based diamond manufacturer will cut and polish the blackened, tennis-ball sized stone, found last year by Canada’s Lucara Diamond (TSX:LUC).

While the mining company has not revealed how much it sold the diamond for, it said it would be cut into smaller pieces, part of a fine jewellery collection.

According to HB, Louis Vuitton paid 50%  up front for the diamond, with Lucara keeping an interest in the other half. Both players have also agreed to direct 5% of the proceeds from the retail sales to community-based initiatives in Botswana.

Before Lucara found Sewelô, the previous holder of the world’s second-largest diamond was the 1,111-carat “Lesedi La Rona”, also dug up by the Vancouver-based miner, in 2015. The rock sold for $53 million to luxury jeweller Graff Diamonds in 2017.

The only larger diamond ever unearthed was the 3,106-carat Cullinan Diamond, discovered in South Africa in 1905. The Cullinan was later cut into smaller stones, some of which now form part of British royal family’s crown jewels.

What makes Sewelô special, according to Melissa Smet, director of the Syndicate of the Belgian Diamond Industry (SBD), is its “mysterious” nature.

“The stone is covered in black carbon, and the quality of the diamond under that layer remains a mystery,” she told The Brussels Times. “There is no guarantee that the diamond will produce precious stones of high quality, which means a great risk.”

Karowe, which began commercial operations in 2012, yielded last year more than 20 diamonds larger than 100 carats, eight of them exceeding 200 carats.

Lucara, which has focused efforts on the prolific Botswana mine as of late, is close to completing a feasibility study into potential underground production and extension of the mine’s productive life.

Louis Vuitton’s purchase is just the latest move its parent company, LVMH, has taken into the luxury jewellery market. The conglomerate also owns Italian jewellery brand Bulgari and watchmakers TAG Heuer and Hublot, and in November, it acquired the iconic New York jeweller Tiffany & Co. for more than $16 billion.