Stardust is a Rare Item found in a handful of different Places of Legend. The first place where you can find it is the Well of Wishes. If you need to know where you can find it fastest, check out my page about the Best Combo for Finding Stardust.
Maximum sale price in sea trading:
1,050 royal coin
Myra's purchase price:
I don't think Myra buys these, but if she did, she would pay 1,000 royal coin, Unknown XP
Market where Myra purchases them:
Myra's Forest Caravan?
How many fit per slot on sea trading ship:
First available at level:
Recipes using this item: