How to Say "Diamond" in Portuguese

diamante

/d͡ʒi.aˈmɐ̃.t͡ʃi/masculine

The English word "diamond" is translated into Portuguese as diamante.

The term refers to the gemstone.

Meaning: gemstone (noun)

How does it change in a sentence?

The plural of diamante is diamantes.

/dʒi.aˈmɐ̃.tʃi/. It has four syllables, and the stress is on the third syllable.

The Portuguese word diamante shares a root with the Greek word meaning 'to tame'. This implies that a diamond is something that cannot be conquered or tamed due to its extreme hardness.
In the context of Portuguese jewelry terminology, diamante specifically refers to the gemstone, whereas 'brilhante' is often used colloquially to refer to a diamond cut for brilliance.
The word diamante shares a root with the English word 'damage', as both stem from the Proto-Indo-European root meaning 'to tame' or 'to subdue'.

Este diamante é falso.
This diamond is fake.
This sentence demonstrates how to say a diamond is fake using diamante.
Tatoeba #2569237 by alexmarcelo, translation #2566220 by VirtuOZ
Tom roubou o diamante.
Tom stole the diamond.
This sentence describes a theft involving a diamond using diamante.
Tatoeba #5417903 by bill, translation #3424284 by CK
Ele fugiu com o diamante.
He ran away with the diamond.
This sentence describes running away with a diamond using diamante.
Tatoeba #8552844 by lucasmg123, translation #290503 by CK
Eu comprei um lindo diamante para presentear minha esposa.
I bought a beautiful diamond to gift to my wife.
Essa joia é feita com brilhantes e pérolas maravilhosas.
This piece of jewelry is made with brilliant diamonds and wonderful pearls.
48 more sentences on Tatoeba

Lucas and Mariana are looking at jewelry in a store.

Sources

Wiktionary, “diamond” translations and entries diamante, CC BY-SA 4.0, dump of 2026-09-26.
Word origins: Wiktionary entries diamante, CC BY-SA 4.0.
Example sentences: Tatoeba CC BY 2.0 FR.

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