Rio Tinto Q2 Diamond Production -5%
Rio Tinto’s diamond production during the second quarter of 2016 fell 5% to 4.43 million carats and dropped 2% versus the preceding first quarter. In the first half of the year, the company’s diamond output rose 2% to 8.95 million carats.
Carats produced at Argyle were 4% higher in the first half, at 6.88 million carats, compared to the corresponding period in 2015 following continued ramp-up of the underground resulting in higher ore volumes processed, which was partially offset by lower grades.
Lower carats recovered in the first half at Diavik, at 2.07 million carats, compared to last year reflect lower grades, partially offset by higher ore availability. Second quarter carat production, at 948,000 carats, was 16% lower than Argyle underground diamond mine. the first quarter largely due to lower recovered grades and slightly lower ore availability due to a planned maintenance shutdown in the plant during the second quarter.
Rio Tinto’s diamond production guidance for 2016 is now a range of 18 to 21 million carats (previously 21 million carats).