If you're able to gather in Diadem, even in normal you have a chance at steel tokens. You can trade those in for crafting and gathering grade 3 and 4. This is a bit of a grind but costs nothing in terms of gil. Granted the alternative would to just be gathering for gil instead of gear. Look into crystals and clusters, they're kind of a gold mine if your server's prices for them aren't dirt cheap like mine. Aetherial Reduction is a blessing!