Rio Tinto Diamond Sales Up 9% in H1 2025 Amid Market Recovery and Production Surge Rio Tinto reported a 9% increase in diamond revenue for the first half of 2025, driven by a rebound in the rough diamond market and a sharp rise in production at its Diavik mine in Canada. Sales from Diavik totaled $162 million for the six months ending June 30, up from the same period last year, the company announced on
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