Mountain Province Diamonds Inc.
TSX : MPV
AMEX : MDM

Mountain Province Diamonds Inc.

January 30, 2007 10:02 ET

Mountain Province Diamonds Welcomes Announcement by De Beers Canada Reduction in Gahcho Kue Capital Budget

TORONTO, ONTARIO and NEW YORK, NEW YORK--(CCNMatthews - Jan. 30, 2007) - Mountain Province Diamonds Inc (the "Company") (TSX:MPV)(AMEX:MDM) today welcomed the announcement by De Beers Canada Inc ("De Beers") that it anticipates a reduction of up to C$200 million in the capital required for the development of the Gahcho Kue diamond mine. The Gahcho Kue project is a joint venture between Mountain Province Diamonds (44.1 percent), De Beers (51 percent) and Camphor Ventures Inc (4.9 percent).

Speaking yesterday at the Mineral Exploration Roundup conference in Vancouver, De Beers Canada CEO Jim Gowans announced that "we can see the (capital costs) drop considerably". A June 2005 pre-feasibility study estimated the capital costs for the construction of the Gahcho Kue mine at C$825 million (unescalated) or C$960 million (escalated). On October 5, 2006 the Company announced that De Beers (the operator of the Gahcho Kue project) was reviewing the 2005 pre-feasibility study with a view to reducing capital and operating costs. Although this review is still underway, preliminary indications are that the capital costs could be reduced to approximately C$720 million. The review is expected to be completed during the second quarter of 2007 when details will be released.

Located in Canada's Northwest Territories, Gahcho Kue is the largest new diamond mine under development globally. The project consists of a cluster of three primary kimberlites with an indicated resource of approximately 14.4 million tonnes grading at 1.64 carats per tonne (approximately 23.6 million carats) and an inferred resource of approximately 17 million tonnes grading at 1.35 carats per tonne (approximately 22.9 million carats). Gahcho Kue is currently in the permitting and advanced exploration stage of development. At full production the Gahcho Kue diamond mine is expected to produce approximately 3 million carats a year over 15 years.

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

This news release may contain forward-looking statements, within the meaning of the "safe-harbor" provision of the Private Securities Litigation Reform Act of 1995, regarding Mountain Province's business or financial condition. Actual results could differ materially from those described in this news release as a result of numerous factors, some of which are outside the control of Mountain Province.

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