Talk:Forge/@comment-67.175.57.210-20200712140451/@comment-45442568-20200713072626

You will most probably loose them, so it is not advised to upgrade the legendary item before, if you wish to upgrade it to relic level, as the books go waste, because it is randomly generated, so the plus stats will probably go to waste, as well as the sockets, and all gems in it.

So, if you have the resources, I would upgrade the item once it is relic :)