Board Thread:Event Discussion/@comment-1004812-20130626151928/@comment-96.255.165.45-20130702002033

You don't keep the stardust itself, but your "count" stays the same.

So say you have 605 stardust and you spend 500 on Juliet. You would only have 105 stardust in your possession afterwards, but your "count" is still 605, so you keep your ranking. ^_^

The "count" resets at second half rankings, but it stays the same for total rankings and you add on for total rankings.