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The diamond index is updated every hour. The percent of change displayed is with reference to yesterday's closing time (24:00 EST).
The Diamond Index and Diamond Drivers were formulated following comprehensive research and analysis of the IDEX inventory database, aggregated since February 2001
The market remains weak and the overall trend remains downward, more so among rounds than fancies. Less overall activity in either direction than we have seen in many recent months. In a weak market like this, consumers keep on buying, but spend less...
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South Africa's National Union of Mineworkers (NUM) has condemned Petra over its decision to put its Finsch mine into business rescue, and to issue a jobs warning for its other deposit, at Cullinan. The union says a total of 1,779 jobs are at risk...
One day, two diamond mine closures. News that Petra was suspending operations at its Finsch mine, in South Africa, and that Storm Mountain Diamonds was doing likewise at Kao, in Lesotho, broke on the same day, Friday 29 May. Petra's suspension...
Average purchase prices for natural diamond jewelry increased by 25% between 2023 and 2025, says De Beers, as the dominance of bridal slipped and people found new milestones to mark with a diamond. Consumers paid $4,063 per piece, on average...
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Sealed and Certified natural stars & melee diamonds