Botswana uncovers a huge 2,492-carat diamond, one of the biggest ever

Gaborone, Botswana — Botswana says one of the largest diamonds ever found has been unearthed at one of its mines and has put on show on Thursday. The Botswana government believes the huge 2,492-carat stone is the second-biggest ever brought out of a mine. Canadian mining company Lucara Diamond Corp. said in a statement Wednesday that it recovered the "exceptional" rough diamond from its Karowe Mine in Botswana. Lucara said it was a "high-quality" stone and was found intact. It was located using X-ray technology.