Dominion Diamond Corp.

TORONTO, ONTARIO -- (Marketwire) -- 07/23/10 -- Harry Winston Diamond Corporation (TSX: HW)(NYSE: HWD) (the 'Company'), is pleased to announce that it has reached an agreement in principle to purchase from Kinross Gold Corporation ('Kinross') its 9% indirect interest in the Diavik Joint Venture for aggregate consideration of approximately US$220 million. Purchase consideration will comprise US$50 million in cash