A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, download } from '@wordpress/icons';
<Icon icon={download} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M18 11.3l-1-1.1-4 4V3h-1.5v11.3L7 10.2l-1 1.1 6.2 5.8 5.8-5.8zm.5 3.7v3.5h-13V15H4v5h16v-5h-1.5z"></path></svg>
download – WordPress Icon Library