The following diamond-certified albums in Canada have sold at least one million units (individual CDs, tapes or LPs) as determined by Canadian Recording Industry Association, the national music recording sales certification agency.
[1] The first million-selling album in Canada was declared in May 1978 as Rumours by the British band Fleetwood Mac.
Michael Jackson's "Thriller" album is the first in Canada to achieve both double and triple Diamond certification.
Double diamond awards are issued to albums that have sold two million units, representing the highest-selling music albums in Canadian history.
Only two Canadian artists, Alanis Morissette and Shania Twain, have attained this level of certification; Twain and Pink Floyd are the only two artists to have reached it with more than one album.