elegance
US /ˈel.ə.ɡəns/
UK /ˈel.ə.ɡəns/

1.
the quality of being graceful and stylish in appearance or manner
:
•
Her movements were full of elegance and grace.
•
The dress was designed with timeless elegance.
2.
the quality of being pleasingly ingenious and simple
:
•
The mathematical proof was admired for its elegance.
•
The software's elegance lies in its simple, intuitive interface.