What do you do with a diamond the size of a fist?
In Antwerp — the glittering heart of the global diamond trade — experts are puzzling over that exact question.
Meet “Motswedi,” a jaw-dropping 2,488-carat stone dug out of Botswana’s Karowe mine last summer.
It’s the second-largest diamond ever found, weighing about half a kilo — yet no one can quite say what it’s worth.
Belgian gem dealer HB Antwerp, which is analysing the stone, says putting a price tag on it right now is nearly impossible.

A Diamond Full Of Secrets
“We first have to inspect the stone and see what we can yield from it in polished form,” explains Margaux Donckier, the company’s public affairs director.
Will it be cut into smaller gems, or remain a single, historic piece destined for a museum or royal vault?
The Karowe mine, owned by Canadian firm Lucara Diamond, has produced some of the planet’s most spectacular stones.
Under a deal with HB Antwerp, any rock over 10.8 carats goes through their expert hands for evaluation and marketing.
So the world waits. Is Motswedi a future crown jewel, a record-breaking auction star, or an untouchable treasure to be left whole?
For now, its sparkle holds more mystery than price.