De Beers builds up largest diamond stockpile since 2008 crisis as demand slumps, report says
De Beers has built up its largest stockpile of diamonds since the Great Financial Crisis, as sinking demand and tougher ...
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The Enigma: Mysterious black diamond up for auction
The 555.55 carat black diamond has belonged to its current owner for two decades but little is known about its history before that. A billion-year-old black diamond, believed to be the largest cut ...