there is no mosdeep in diamond that's only in ruby, sapphire, or emerald
it's in mossdeep city
in mossdeep city
go to the space station at mossdeep talk to the people that are guys on person will say how he dont need it talk to him
its 70
In mossdeep, go to ure right then up
the space station in mossdeep city
With an event you can get deoxsys here
it is in lilycove it is in mossdeep in the house beside the space station
In mossdeep city near the space station
there is a little girl close to the space station in mossdeep.
They will come and try to steal the fuel from the space station. This takes place after you have beaten the Mossdeep gym leader
You an get a sunstone in Mossdeep city at the Space Station from talking a particular man there.