You get it in Mt coronet
To get theLustrous Orb click where Palkia was standing.
Yes, all you need to do is bring either a Lustrious Orbor Adament Orb to Spear Pillar (where you find Giratina the first time, and also where you see Palkia/Dialga in Pearl/Diamond). Whichever orb you bring to the Pillar will effect the Pokemon that appears there. (Lustrious = Palkia | Adament = Dialga)
it is hidden in mt.coronet in a cave you need hidden move "waterfall" to get it though
the platinum orb ( or in Pokemon platinum "the greiceus orb") this is given to giratina and then it changes to its original form.
go through turn back after you beat the elite four and you'll find a portal to he distortion world enter it and go trough it again and at the end you'll find it
You need to trade it from pearl it's not avalible any way else
From Dialga and Palkia. They are holding it when you catch them.
There's no way you can. It disppears when you trade the Giratina holding it. there is no platinum,pearl,or diamond orb its called the GRISEOUS orb,adamant orb and lustrous orb
You must transfer it from Pearl
The Griseous Orb is only available in Pokemon Platinum.
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you can find the lustrous orb inside of mt.coronet