black diamond

noun

1

: dense black hematite

2

black diamonds plural : coal sense 3a

3

: carbonado entry 3

Examples of black diamond in a Sentence

Recent Examples on the Web

In Sex and the City 2, the 2010 sequel to the first spin-off film based on the hit series of the same name, protagonist Carrie Bradshaw receives a black diamond ring from her partner. — Bailey Bujnosek, InStyle, 21 July 2026

At the time, Bechtel shared photos on her Instagram Stories of herself wearing her engagement ring from The 1975 singer, which features a black diamond with pavé diamonds around both the center stone and the band. — Ashlyn Robinette, PEOPLE, 19 July 2026

The namesake black diamond particles in this recipe help drive those actives deeper, just like every other product in the brand’s to-shelf Black Diamond roster. — Adam Hurly, Robb Report, 8 May 2026

At the New Mexico resort nestled in the southernmost Rockies, though, the trail merits only a single black diamond. — Michelle Ruiz, Vogue, 7 May 2026

Word History

First Known Use

1763, in the meaning defined at sense 3

Kids Definition

black diamond

noun

: carbonado