A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, notAllowed } from '@wordpress/icons';
<Icon icon={notAllowed} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path fill-rule="evenodd" clip-rule="evenodd" d="M12 18.5A6.5 6.5 0 0 1 6.93 7.931l9.139 9.138A6.473 6.473 0 0 1 12 18.5Zm5.123-2.498a6.5 6.5 0 0 0-9.124-9.124l9.124 9.124ZM4 12a8 8 0 1 1 16 0 8 8 0 0 1-16 0Z"></path></svg>
notAllowed – WordPress Icon Library