You would trade your GP for ZC with other users. There’s no where on site to exchange it directly. :o So you basically go to the trade forums, and set up a thread saying you want to exchange your GP for their ZC and set up an exchange rate. Anywhere between 1ZC:5GP and 1ZC:6GP is the most common but you can set the rate to whatever you want~

Thank you

The first post needs to be updated somewhat. To start off with, most of the time with Z-Crystals, I see them being bought/sold for 50ZC a piece. So 100ZC... is a bit more unlikely nowadays. The goals for the Z-Fragments is also off/wrong, so that should be updated as well. Also, the 5 days has been changed to 10GP not 100 (sadly). That's *about* it, I'd say. This isn't a bad guide, just a little out of date. I also just noted that other people have posted some of this as well.

To add onto this, most people now use the 5k=5=1 conversion rate. And since when has 3k credits been equal to 600 ZC?