Mountain Province Diamonds Production Report for the Third Quarter Ended September 30, 2017 and Results of Eighth Diamond Sale

Q3 Production Statistics

Said David Whittle, the Company's Interim President and Chief Executive Officer, "The recovered grade in the third quarter of 2.22 carats per tonne remains substantially above the 1.62 initially projected for 2017.  Given the continuation of our strong plant performance and favourable grade experience at the GK Mine, we are well on track to meet and exceed our current full-year 2017 production guidance of 2,720,000 tonnes processed and 5,500,000 carats recovered on a 100% basis."

Eighth Diamond Sale Results

The results of the eighth sale, with preceding sale results for comparative context, are summarized as follows:

To more meaningfully relate prices realized at sale events to production results, the Company also provides the following table:

Tonnes processed in the month of September reflects the impact of a planned five day shut-down in that month for annual maintenance.  This shut-down was incorporated in the determination of production guidance for 2017, and was successfully executed as planned.

Price experience in the eighth sale is consistent with that reported by the industry generally and reflects the seasonally slow period in the rough diamond sector around Jewish and Hindu New Years' holiday periods.  Also, similar to the seventh sale, realized value per carat in the eighth sale reflects the inclusion of significantly fewer fancies and specials than previous sales, as well as a finer size distribution experienced in the summer's production.  Said Reid Mackie, the Company's Vice President Diamond Marketing, "The October tender sale saw our highest levels of competition to date with an average of 11.8 bids per lot and 145 companies attending.  This strong participation reflects continued deepening of Mountain Province's customer base and interest in our diamond offering.  The result is that Mountain Province's sell through rate is one of the highest among major producers, despite recent market corrections and the traditionally slow lead up to the Diwali holiday period."

Mountain Province Diamonds is a 49% participant with De Beers Canada in the Gahcho Kué diamond mine located in Canada's Northwest Territories.  Gahcho Kué is the world's largest new diamond mine and projected to produce an average of 4.5 million carats a year over a 12 year mine life.

The Gahcho Kué Diamond Mine consists of a cluster of four diamondiferous kimberlites, three of which are being developed and mined under the current mine plan.

Qualified Person
This news release has been prepared under the supervision of Carl G. Verley, P.Geo., who serves as the qualified person under National Instrument 43-101.

Forward-Looking Statements

Cautionary Statement:  This news release contains forward-looking statements under applicable Canadian and US securities regulations and legislation in which Mountain Province discusses its potential future performance.  Forward-looking statements are all statements other than statements of historical facts, such as projections or expectations relating to ore grades and processing rates, production and sales volumes, cash costs, operating cash flows, capital expenditures, debt management initiatives, exploration efforts and results, development and production activities and costs, liquidity, tax rates, the impact of diamond price changes, reserve estimates, and future dividend payments.  The words "anticipates," "may," "can," "plans," "believes," "estimates," "expects," "projects," "targets," "intends," "likely," "will," "should," "to be", "potential" and any similar expressions are intended to identify those assertions as forward-looking statements.  Under its current project finance facility Mountain Province is not permitted to pay dividends on common stock unless and until obligations under the facility have been satisfied.  The declaration of dividends is at the discretion of Mountain Province's Board of Directors, subject to restrictions under the Company's project finance facility, and will depend on Mountain Province's financial results, cash requirements, future prospects, and other factors deemed relevant by the Board.

Mountain Province cautions readers that forward-looking statements are not guarantees of future performance and actual results may differ materially from those anticipated, projected or assumed in the forward-looking statements.  Important factors that can cause Mountain Province's actual results to differ materially from those anticipated in the forward-looking statements include supply of and demand for, and prices of, diamonds, mine commissioning, mining sequencing, production rates, cash flow, industry risks, regulatory changes, political risks, labor relations, weather- and climate-related risks, environmental risks and other risk factors.

Investors are cautioned that many of the assumptions upon which Mountain Province's forward-looking statements are based are likely to change after the forward-looking statements are made, including for example diamond prices, which Mountain Province cannot control, and production volumes and costs, some aspects of which Mountain Province may not be able to control.  Further, Mountain Province may make changes to its business plans that could affect its results.  Mountain Province disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, except as required by law.