Di

Pronounced as "die". Nope! Maybe if it was pronounced as "dee", I would like it more, tbh.

Never. This sounds as if you are telling someone to Die. If your name is Diane or Diana, go by Dee or Dede.

This is my friend's nickname for Diana. In primary school, she used to get teased a lot, with children always saying something along the lines of: 'Die Di!'. Immature children ruin this as a name, so it would be better to use Diane or Diana instead of just Di, and call them Di. Also, Di doesn't sound very good on a grown woman.

Never just call your child "Di". It looks incomplete, plain. It's best used as a nickname for Diane or Diana.