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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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A sale of rough diamonds from the Democratic Republic of Congo (DRC) in Antwerp today (18 June) broke a decades-old pattern which locked artisanal miners out of the international market. In what is billed as a world first, a small parcel of diamonds from ...
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...
Chow Tai Fook reported record-high profits for fiscal year 2026, even as the latest quarter showed weakness in mainland China. Revenue for the 12 months to 31 March 2026 was HK$94.4 billion (US$12.1 billion), up 5.3% from the previous year....
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Sealed and Certified natural stars & melee diamonds