There is no Dialga egg.
how to catch dailga in Pokemon diamond use the master ball
Trade them from the Diamond and Pearl versions.
You can't get dialga on pearl only diamond can so trade with diamond to get one.
In Diamond and Platinum, Dialga is in Spear Pillar. If you want to get Dialga in Pearl, trade Dialga from Diamond.
He can't go on there. Only on Diamond.
Sorry, you can't. You have to get Pokemon pearl for that. If you buy Pokemon platinum you can obtain dailga, palkia, and giratina!
No offense, but I think you mean Dialga, and it is on top of Mt. Coronet at Lvl. 47 in the Spear Pillar.
How do youcatch a dailga in Pokemon indogo
Diamond Trellis Egg was created in 1890.
i don't think you can. only in diamond and platinum. if you cant get it its okay. you can get better Pokemon in pearl like heatran. most likely. [hope this helped]
no
Cynthia does not give you an egg in Pokémon Diamond or Pearl, she gives an egg containing a Togepi in Pokémon Platinum after you have beaten Team Galactic in Eterna City