You must transfer or wait for another Pokemon event.
Sorry, you cannot obtain Jirachi in Diamond Version without the use of cheats. You can obtain it via Pokemon Colosseum pre-order disc though.
The only way to get Jirachi in Diamond Version is to import it through the Pal Park from either Ruby or Sapphire Version. In either Ruby or Sapphire, though, the only way to get Jirachi in the first place is to play either Pokemon Channel or Pokemon Colosseum and import it from there.
You cannot get a Jirachi in "Pokémon Diamond" except for through using the Colosseum Bonus Disc, downloading the Jirachi from that into either "Pokémon Ruby" or "Pokémon Sapphire" and then migrate it into Pokémon Diamond or you could have gotten a Draco Meteor Jirachi from the Gamestop Jirachi event that was held in February and March of 2010, additionally you can use an Action Replay cheating device or a Pokésav in order to cheat a Jirachi into Diamond.
You need the game Pokemon Channel for the gamecube. After unlocking the full version of The Pichu Bros. in Party Panic, Jirachi will appear, and the mini-movie will be shown above the campfire. It can be downloaded onto a version of Pokémon Ruby and Sapphire. Once its on your Pokémon Ruby or Sapphire, you can get it through the Pal Park onto your Pokémon Diamond.
One of my friends told me you can get jirachi at the end of Mt. Moon and I have tried but I can't figure out how to get there. I do believe there is a jirachi in heart gold version because there are sinnoh Pokemon in it and I have found mewtwo. In gold version however, jirachi cannot exist for gold version was made before jirachi was. I wish you luck in finding the legendary jirachi and other Pokemon!
Jirachi cannot be caught in Pokemon Diamond. It can, however, be transferred from Ruby, Sapphire, or Emerald, assuming you got it from a Nintendo event.
Nowhere. It can only be downloaded or migrated.
You cannot find Jirachi in Pokémon Diamond. Jirachi is only available during limited time distributions or via dowloading it from the Pokémon Colosseum pre-order bonus disc.
The only way you can get jirachi is through a special bonus disk for Colosseum.
Currently, Jirachi is not obtainable through traditional methods in Pokemon Ruby Version.
Celibi and Jirachi are being sold at GAMESHOP only for heartgold and soulsilver version. peace out.
I have an event Celebi from gamestop that gives you zorua in pokemon white and black and it's at level 54 and it's from my Heart Gold version. I just have two questions what level is the Jirachi and when can you trade? My friend code is 1893 2781 5484 and my name is Josh.