User blog comment:Septan96/Which race and job class would you be if you were transported to New World?/@comment-27008999-20151012180601/@comment-1846146-20151012234356

Yep. Avatara was made look like them and named "Avatara" by Ainz. But made from Cash Shop items - Special type of golems that could wear their equipment. It should be said in the vol.3 of the LN in the theasury chapter.

And NO ONE EVER said that Rubedo is Golem. And even if she is - she's probably unique, 'cuz probably made from World Class Item. Well, somehow everything that was mentioned 'til now points to that she is. But as of now - there is no proof.