A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, customLink } from '@wordpress/icons';
<Icon icon={customLink} />
<svg xmlns="https://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M12.5 14.5h-1V16h1c2.2 0 4-1.8 4-4s-1.8-4-4-4h-1v1.5h1c1.4 0 2.5 1.1 2.5 2.5s-1.1 2.5-2.5 2.5zm-4 1.5v-1.5h-1C6.1 14.5 5 13.4 5 12s1.1-2.5 2.5-2.5h1V8h-1c-2.2 0-4 1.8-4 4s1.8 4 4 4h1zm-1-3.2h5v-1.5h-5v1.5zM18 4H9c-1.1 0-2 .9-2 2v.5h1.5V6c0-.3.2-.5.5-.5h9c.3 0 .5.2.5.5v12c0 .3-.2.5-.5.5H9c-.3 0-.5-.2-.5-.5v-.5H7v.5c0 1.1.9 2 2 2h9c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2z"></path></svg>
customLink – WordPress Icon Library