By leveling up.
by either leveling up & or buying them
leveling up
Keep on leveling up. ;)
By leveling up, trading for them, or getting a member allowance.
Leveling up -- that's the only way sorry!
There are no codes like this.
You can get diamonds by leveling up, or, if your a member, get your monthly/weekly diamond allowance (different amount for each plan).
You can trade for them, earn them by leveling up, or get them in a monthly/weekly member allowance.
You get it by buying it. Or go on a cheat website.
You get diamonds by leveling up or purchasing them under purchase options in pixie hollow.
By leveling up. You earn diamonds every level except for levels where you earn a new talent skill. The only other way is to buy them.