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PETRA BEATS DIAMOND INDUSTRY BLUES
A MAGNIFICENT blue diamond from Aim-listed Petra Diamonds’ Cullinan mine broke records at a Sotheby’s auction in Geneva on Tuesday evening when it was sold for $9.5m (£6.3m), bucking the industry’s recent woes. The 7.03 carat diamond fetched the highest price per carat for any gemstone ever sold at auction, as well as a record auction sum for any fancy vivid blue diamond sold in the past.