Synonyms for diamond

noun

1. A crystalline jewel

   (precious) stone, solitaire, engagement ring, brilliant, bort(s), diamond chips or flakes, crystal, ring, finger ring, rock*, sparkler*, glass*, ice*; see also jewel 1. see also gem 1, stone.

   Grades, sizes, and forms of diamonds include: green, blue, blue-green, yellow, orange, canary, red, pink, brown, gray, smoky, black, rough, uncut, brilliant, double brilliant, half-brilliant, trap-brilliant, split-brilliant, old-mine, Kimberley, Brazilian, industrial, artificial; table, pear-shaped, marquise, baguette, emerald-cut, table-cut, flat-cut, square-cut, oval-cut; diamond of the first water, diamond of the second water, diamond of the third water;

   Famous diamonds include: Jubilee, Cullinan, Orlof, Nassak, Pigott, Hope, Great Mogul, Shah of Persia, Florentine, Star of the South, Kohinoor, Mountain of Light, Star of Yakutia, Regent, Pitt, Pascha of Egypt.

2. An instrument using a diamond

   cutter, glass cutter, diamond point; see tool 1.

3. Shape or figure

   lozenge, rhombus, rhomb, quadrilateral; see form 1, solid.

4. A baseball playing field, particularly the infield

   lot, ballpark, sandlot, orchard*, pasture*, inner works*; see also field 2, park 1.