in the Resort area on route 229
you need ten ribbon to be a Pokemon diamond pearl
Win 10 times for a bronze ribbon, 20 times for a silver ribbon, 30 times for a gold ribbon, 50 times for a platinum ribbon, 100 times for a diamond ribbon
Max out your Pokemon's EVs.
10
A Paper Ribbon-Carrier is an article from Transactions of the American Microscopical Society, Volume 30.
the first Pokemon in your party must have ten ribbons on it.
the ribbon syndicate but to get in there you have to get 3 great ribbons to get into there
Same as in Pearl and Diamond, Pastoria City.
pito
Have 10 different ribbons across your party.
To get into that "special ribbon place" or the Ribbon Society, your first choice Pokemon (top left) has to have at least 8 ribbons. Ribbons can be earned by beating contests in Hearthome City and there's this lady in SunyShore City in a home. You also get one for beating the Elite Four. NOTE: It doesn't count if you have 10 ribbons in TOTAL. You must have 8 ribbons on a SINGLE Pokemon. Good luck!
You have to be able to enter the highest contest possible, then you will be let in.