A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, shield } from '@wordpress/icons';
<Icon icon={shield} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M12 3.176l6.75 3.068v4.574c0 3.9-2.504 7.59-6.035 8.755a2.283 2.283 0 01-1.43 0c-3.53-1.164-6.035-4.856-6.035-8.755V6.244L12 3.176zM6.75 7.21v3.608c0 3.313 2.145 6.388 5.005 7.33.159.053.331.053.49 0 2.86-.942 5.005-4.017 5.005-7.33V7.21L12 4.824 6.75 7.21z" fill-rule="evenodd" clip-rule="evenodd"></path></svg>
shield – WordPress Icon Library