Mafia Wars Diamond Drops From Robbing

got the diamonds from Robbing!

This is my lucky night! I have tried to find the screen-shots and now I get it..
You can see from above screen-shots that I didn't succeed on all robberies.. but still able to collect the diamonds..

Well I'm sure lots of you have these collections too..
But do you have them as many as this player?

No, it's not mine.. belong to one lucky players that able to have more than lots of us! He said it does need lots of luck to collect those whole sets!