Synonyms for diamond

noun

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