Meaning of carbonado in English:

carbonado

Pronunciation /ˌkɑːbəˈneɪdəʊ/

nouncarbonados

  • A dark opaque diamond, used in abrasives and cutting tools.

    Also called black diamond

    ‘Large Brazilian carbonados include the Carbonado Casco de Barro, Carbonado do Sergio, and Carbonado Xique-Xique.’
    • ‘Heaney and Vicenzi both work with rare diamonds known as carbonados, which are found only in Brazil and central Africa.’
    • ‘Black or gray-black, massive, granular to compact bort is known as carbonado.’
    • ‘The team has used this technique to characterize carbonados from the Central African Republic.’
    • ‘Masses of carbonado up to 3,100 carats are reported from deposits near Lencois, Brazil.’

Origin

Mid 19th century from Portuguese.