diablo 3 augment ancient item necromancer

You don't want to spend your gems augmenting an item to have a better one drop a few rifts later. Make sure that the item you are considering for augmentation has the correct rolls, and that those rolls are at least close to being max level. Before you augment an item you should evaluate if it is worth spending your gems on (both the actual levelled gem, and your Flawless Royal gems). This does not mean that just because an item is ancient that you should augment it.

Augments can only be placed onto ancient items (including primal ancients).

Does it work on non-ancient set items?(I think the guide mentioned you could, but I'm unsure)?.

Most people will augment an item a few times, generally, it is done when you have gems that are about 20 levels higher than the augments currently on the item.

The new one you put on an item will overwrite the old one, be it a higher or lower level gem that you are augmenting with. Yes, you can augment an item as many times as you like, but the item can only hold one augment at a time. Can I augment multiple times? Like if I augment a primal with a lvl 50 gem but I get a 70 later on, can I 'upgrade' the augmentation?.

Diablo 3 augment ancient item necromancer