There are 9 non-diamond face cards in a standard 52 card deck.
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Approximately 77% that you will not choose a face card
The probability is 11/13.
It is 18/52 = 9/26
Since 7 is already a non-face-card, we know that there is 4 of each suit, and 3 royalty. 4(3) = 12, 52 - 12 = 40. 40/52 = 10/13.
A Rhombus or a paralellogram or what is known as a "diamond-shape", like on a playing card. These would fit the criteria given - They are all names for a quadrilateral with four equal sides with non-equal angles.