Mountain Province Diamonds production report for the second quarter ended June 30, 2017

20 July 2017

Mountain Province Diamonds Inc. today announces production results for the second quarter ended June 30, 2017 from the Gahcho Kué Diamond Mine. The second quarter of 2017 represented the first full quarter of commercial production for the GK Mine, as commercial production was declared on March 1, 2017. Mining of overburden, waste rock and ore in the 5034 open pit for the second quarter was approximately 8.4 million tonnes, with approximately 396,000 tonnes of ore (100 percent basis) stockpiled at period end. In the second quarter of 2017, the GK Mine treated approximately 767,000 tonnes of ore through the process plant and recovered approximately 1,614,000 carats on a 100% basis for an average grade of approximately 2.10 carats per tonne. The Company’s attributable share of second quarter diamond production was approximately 791,000 carats.