Originally projected to yield just over 100 million carats when plans were drawn up in the late 1990s, Diavik has surpassed expectations by 50 percent. The mine, comprising four kimberlite pipes, has been in operation since 2003 and is expected to end production in early 2026.

Located about 300 kilometres north of Yellowknife on Lac de Gras, Diavik is internationally recognized for producing both white and yellow diamonds, many of which are used in jewellery markets around the world.

Planning for closure has been underway for years, with goals covering land use, water management, biodiversity, community capacity, and resource development.

The 150-million-carat milestone underscores the mine’s significance to Canada’s diamond industry and highlights the mineral potential of the Northwest Territories.