For anyone wondering what you need to legitimately get for 100% (Either for pride or when the other method is patched). You do not need Perfect or Plat Relics. You will however need all N-verted gems as well as the normal & coloured ones of course.
I do believe you will also need to have unlocked and at least completed the Flashback tapes (although I am unable to verify this as I had already done them before going for gems).
Hope this helps for anyone at least wanting 100% even if 106% is a bit out of reach.