Stornoway Announces Addition to S&P/TSX SmallCap Index

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 09/12/11 -- Stornoway Diamond Corporation (TSX: SWY) is pleased to announce that at the close of trading on Friday, September 16th, Standard & Poor's Canadian Index Operations will add Stornoway to their list of companies on S&P/TSX SmallCap Index.

'The addition of Stornoway to the S&P/TSX SmallCap Index is another important step in our corporate development', said Matt Manson, President and CEO. 'Our inclusion will increase Stornoway's exposure to a broader range of potential investors and enhance trading liquidity.'

The new additions to the S&P/TSX SmallCap Index were made public by Standard & Poor's Canadian Index Operations on September 9, 2011 following their annual index review.

About Stornoway Diamond Corporation

Stornoway Diamond Corporation is one of Canada's leading diamond exploration and development companies, involved in the discovery of over 200 kimberlites in seven Canadian diamond districts. The Company benefits from a diversified diamond property portfolio, a strong financial platform and management and technical teams with experience in each segment of the diamond 'pipeline' from exploration to marketing. Stornoway's lead asset is the 100% owned Renard Diamond Project, on track to become Quebec's first diamond mine.

On behalf of the Board

STORNOWAY DIAMOND CORPORATION

Matt Manson, President and Chief Executive Officer

This document contains 'forward-looking information' within the meaning of Canadian securities legislation and 'forward-looking statements' within the meaning of the United States Private Securities Litigation Reform Act of 1995. This information and these statements, referred to herein as 'forward-looking statements' are made as of the date of this document and the Company does not intend, and does not assume any obligation, to update these forward-looking statements, except as required by law.

Forward-looking statements relate to future events or future performance and reflect current expectations or beliefs regarding future events. Any statements that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance (often, but not always, using words or phrases such as 'expects', 'anticipates', 'plans', 'projects', 'estimates', 'assumes', 'intends', 'strategy', 'goals', 'objectives' or variations thereof or stating that certain actions, events or results 'may', 'could', 'would', 'might' or 'will' be taken, occur or be achieved, or the negative of any of these terms and similar expressions) are not statements of historical fact and may be forward-looking statements.

All forward-looking statements are based on Stornoway's or its consultants' current beliefs as well as various assumptions made by and information currently available to them. Assumptions set forth in this news release include: (i) that the Renard Diamond Project will be Quebec's first diamond mine and; (ii) that Stornoway's inclusion in the S&P/TSX SmallCaps Index will result in exposure to a broader range of investors and will result in enhanced trading liquidity. By their very nature, forward-looking statements involve inherent risks and uncertainties, both general and specific, and risks exist that estimates, forecasts, projections and other forward-looking statements will not be achieved or that assumptions do not reflect future experience. We caution readers not to place undue reliance on these forward-looking statements as a number of important factors could cause the actual outcomes to differ materially from the beliefs, plans, objectives, expectations, anticipations, estimates assumptions and intentions expressed in such forward-looking statements. When relying on our forward-looking statements to make decisions with respect to Stornoway, investors and others should carefully consider the foregoing factors and other uncertainties and potential events. Stornoway does not undertake to update any forward-looking statement, whether written or oral, that may be made from time to time by Stornoway or on our behalf, except as required by law.

Contacts:

Stornoway Diamond Corporation

Matt Manson

President and CEO

416-304-1026


Stornoway Diamond Corporation

Nick Thomas

Manager Investor Relations

604-983-7754 or Toll Free at 1-877-331-2232
info@stornowaydiamonds.com


Stornoway Diamond Corporation

M. Ghislain Poirier

Vice-president Affaires publiques de Stornoway

418-780-3938
gpoirier@stornowaydiamonds.com
www.stornowaydiamonds.com