noun
insignia
in-SIG-nee-uh/ɪnˈsɪɡniə/
A badge or symbol showing rank, office, or membership.
The officer wears an insignia that identifies her rank.

Etymology
The identifying-mark root, combined with in-, underlies a Latin term for a badge of honor or office. An insignia is thus a sign that identifies someone's rank, authority, or affiliation.
In context
… probably containing intaglio seal with his crest or insignia.
More examples
- Club members wear pins bearing the club's insignia.
- The captain's insignia is sewn onto each shoulder.
- The display includes insignias from several military units.
Forms
insignia · insignias