A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, arrowDownRight } from '@wordpress/icons';
<Icon icon={arrowDownRight} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M10 18h8v-8h-1.5v5.5L7 6 6 7l9.5 9.5H10V18Z"></path></svg>
arrowDownRight – WordPress Icon Library