Hmmm, I don't know. I don't think I'd necessarily think of
Princess Diana, more that
Diana would be quite surprising on a baby in 2012. In a good way - I think it's striking. Not dated to the extent that
Diane /
Dianne is. But I agree with
Anne that I'd be a bit iffy about the nn
Di. I'd probably steer away from
Di and instead use
Anna if I wanted a nn for
Diana.
Also, there was a baby
Diana in some
BAs I posted last week that I was pleased to see.