Question

what is black diamond?​

Answer 1

$\fcolorbox{pink}{aqua}{HEY MATE ANSWER}$

Carbonado, commonly known as the "black diamond", is the toughest form of natural diamond. It is an impure form of polycrystalline diamond consisting of diamond, graphite, and amorphous carbon. It is found primarily in alluvial deposits in the Central African Republic and in Brazil.

Answer 2

a black diamond called

.........

carbonado