I don't think so, as I think the game already sets the IVs for all the 3 starters in one go. You could find it out very easily, though. Just save before picking the starter, then reset noting the time, and get the Piplup as soon as you enter the game.
Then you just need to input the IVs on the seed finder (if you can IV Check) and find the frame. If the Piplup is on frame 1, then all the starters are on frame 1. If not, then it's frame 1 for Turtwig, Frame 5 for Chimchar and Frame 9 for Piplup.
I'm pretty sure it's like that on Platinum, since I've abused my wife's starter, so I don't see why it would be different in Diamond.
Then you just need to input the IVs on the seed finder (if you can IV Check) and find the frame. If the Piplup is on frame 1, then all the starters are on frame 1. If not, then it's frame 1 for Turtwig, Frame 5 for Chimchar and Frame 9 for Piplup.
I'm pretty sure it's like that on Platinum, since I've abused my wife's starter, so I don't see why it would be different in Diamond.