Wiktionary
knave of diamonds
n. Alternative form of jack of diamonds
Usage examples of "knave of diamonds".
The knave of diamonds was someone who would cause financial grief.
He remembered the terrible night when the wicked Lord Canterville was found choking in his dressing-room, with the knave of diamonds half-way down his throat, and confessed, just before he died, that he had cheated Charles James Fox out of £.
At last, reasoning that Bond might be void in his own long suits, spades and hearts, he led the knave of diamonds.