You can't
you can't get a celebi in Pokemon diamond, you only can get celebi by trading, migrating or by using action replay
no,you can't
You get it in a trade.
it's completely impossible
Yes,but only with a g.s.ball.
You cant...You must get it off of Gale of Darkness
The only way I know is Action Replay/ Gameshark
You need to wight for an even to get celebi at Game Stop.
The pokeballs are random one time I got mew and celeby they both dropped cd's
you should have the mystery gift and mystic ticket to get access to the island's 8 and 9, you will find a lot of rare Pokemon there
dialga palkia uxie azelf mesprit regis regigigas deoxys celeby manaphy phionie etc.