This is the 6402nd most frequent Portuguese word.
diamantina
"Diamantina" refers to something related to diamonds or diamond-like.
In this sentence, 'Diamantina' is used as a proper noun, being part of the name of a geographical location.
A Serra Diamantina é conhecida por sua beleza natural.
The Diamantina Mountain Range is known for its natural beauty.
Here, 'diamantina' is used as an adjective to indicate something adorned with diamonds or diamond-like elements.
Ela comprou uma brocha diamantina para decorar o vestido.
She bought a diamond-studded brooch to decorate the dress.
In this usage, 'diamantina' relates to its geological context, referring to matters or formations associated with diamonds.