elegance

/ˈɛl.ɪ.ɡəns/

Grace, refinement, and beauty in movement, appearance, or manners.

The bride was elegance personified.

Restraint and grace of style.

The simple dress had a quiet elegance.

The beauty of an idea characterized by minimalism and intuitiveness while preserving exactness and precision.

The proof of the theorem had a pleasing elegance.

A refinement or luxury.