Honestly at the current price of items it will take forever to earn anything.
Since everything in the shop you buy with coins is NT, I think they deserve a low price.
And honestly, I think earning one coin every one hour is better. Because that way, if you are only online for 3 hours in a day, you can still redeem it without having to wait the next day.
In my opinion, Jewel's should be 20-30 points. 20/30 Hours of in-game time is A LOT. And since the auric jewel is valuable, it should be a good price.
CP/EXP Charm I should be 1 point, and CP/EXP charm II should be 3 points
If you think the auric jewel is under priced, I think your wrong. Because realistically, how long will it take you to earn 20 hours of in-game time? I'm level 50, and I think I play a lot, but I still think 20 hours is a lot. At around 5 hours a day, you should be able to obtain one after 4 days. That seems fair to me.
If you were to release Fashion items into the mall, I say they should not be permanent, they should only be for a set time.
For example, a 7 day war kimono = 15 coins.
The fashion items should be treated as test items.