Originally Posted by
Onisake
On sargatanus the crystals go for around 10k each. 200 crystals will get you capped seals, so you're looking at around 2m.
This is easily farm-able in a day (or a couple hours of SBing if you're lucky). considering the power in a lot of the LT gear this is pretty cheap. if you've been diligent you probably have most of your gear, and you can probably get everything you want/need from GC for around 2-4m and cap your seals. Exception being if you want all LT weapons. but then you have all jobs at 50, so you probably have sufficient income from something to be able to afford to buy crystals.
only other point is to cap seals, which is still 2m. so i'd say that's pretty good. I myself will likely farm Atomos off/on to hit seal cap and then buy remaining crystals by the end of the week.