Edit: I'm so happy about receiving a DD and I hope you all have liked it, I'm in the process of looking for new effects (by my favourite method, experimentation!) anyway thank you for so many views, Faves, and Group Features! I never would have expected a DD on a work that I did when I got incredibly bored, or any of my work for that matter! Oh! And post links to your version here so I can check them out!
Ok, so I had far too much time on my hands, so i made my first ever tutorial, this is how to make the 'Diamond Lights' image i made a while ago.
And for the Blur, use anything between 0.1-0.7.
Use a really good render setting, i did this as a quick thing just to get it done. I don't know why I was always too scared to do tutorials, it's so easy!