black diamond

1. 1.

   an inferior dark diamond used in industry for drilling and polishing

   Synonymscarbonado

   Broaderdiamond

Questions about black diamond

What does black diamond mean?

black diamond means "an inferior dark diamond used in industry for drilling and polishing".

What is another word for black diamond?

Close synonyms include carbonado. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is black diamond a common word?

black diamond is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.