n a transparent piece of diamond that has been cut and polished and is valued as a precious gem
n very hard native crystalline carbon valued as a gem
n a parallelogram with four equal sides; an oblique-angled equilateral parallelogram
n a playing card in the minor suit that has one or more red rhombuses on it
n the area of a baseball field that is enclosed by 3 bases and home plate
n the baseball playing field