diamanté

noun

di·​a·​man·​té ˌdē-ə-ˌmän-ˈtā 

: a sparkling decoration (as of sequins) or material decorated with this

a gown trimmed with diamanté

Word History

Etymology

French, adjective, like a diamond, from diamant diamond, from Middle French

First Known Use

1904, in the meaning defined above