IN BRIEF: Gemfields shares fall despite interim auction revenue surge
Gemfields Group Ltd - London-based miner and marketer of coloured gemstones - Says auction revenue rises 72% to USD102.9 million for the six months that ended June 30, from USD60 million a year earlier. Notes that its Montepuez Ruby Mining Ltda in Mozambique continues to experience weak premium-grade ruby recovery. But Zambian-based Kagem Mining Ltd maintains "healthy" premium emerald production, while higher fuel prices, exchange rate pressures and increased mining activity impacted operating costs. Read More