(in Britain) an album certified to have sold 250 000 copies or a single certified to have sold 500 000 copies (in the US) an album or single certified to have sold 1 000 000 copies or a single certified to have sold 500 000 copies
Compare silver disc, platinum disc
Collins Concise English Dictionary © HarperCollins Publishers::
'gold disc' also found in these entries (note: many are not synonyms or translations):