- In the editor, add a new item, and select whichever legendary gem you are wanting to mod.
- Leave the durability at 0.
- Set level to 1 and legendary level to 70.
- set primal flag
The Affixs work like any other piece of gear. You can add the 6 base affixs and add the 7th in the mystic tab.
(NOTE: Do not put sockets on gems)
Yes you can augment Legendary gems. No special trick to it. There are a few however that wont augment but I cant remember them off the top of my head. You'll just have to expiriment and see for yourself. :)
No special trick here either. Socket into gear like normal.