A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, group } from '@wordpress/icons';
<Icon icon={group} />
<svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false"><path d="M18 4h-7c-1.1 0-2 .9-2 2v3H6c-1.1 0-2 .9-2 2v7c0 1.1.9 2 2 2h7c1.1 0 2-.9 2-2v-3h3c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm-4.5 14c0 .3-.2.5-.5.5H6c-.3 0-.5-.2-.5-.5v-7c0-.3.2-.5.5-.5h3V13c0 1.1.9 2 2 2h2.5v3zm0-4.5H11c-.3 0-.5-.2-.5-.5v-2.5H13c.3 0 .5.2.5.5v2.5zm5-.5c0 .3-.2.5-.5.5h-3V11c0-1.1-.9-2-2-2h-2.5V6c0-.3.2-.5.5-.5h7c.3 0 .5.2.5.5v7z"></path></svg>
group – WordPress Icon Library