English

Noun

black diamond ‎(countable and uncountable, plural black diamonds)

1. hematite
2. anthracite
3. carbonado, a natural diamond that is black in colour
4. A black synthetic diamond, specifically a CVD polycrystalline diamond or HPHT polycrystalline compact diamond.
5. boron carbide
6. (South Africa, derogatory) A member of the new affluent black middle class in South Africa, characterised by conspicuous consumption.
7. (skiing) A symbol representing a steep and relatively difficult trail, typically 40% gradient or above.

Derived terms

• (skiing): double black diamond

Coordinate terms

(skiing):

• green circle
• blue square
• bunny hill

See also

• ♦ (Unicode black diamond)