I have tested it many times, and demo and even live account. Diamond is a EA you have to monitor. And, all these EAs that the majority say its good. Up to a certain extend.
When you come into contact with what is real good, then you will know the difference. Go through the mql website and look at those EAs. Really really good ones. Diamond is maybe just like from the dark series standard only. This past week i had the chance to try some of it. Spectacular. 1 EA i just put into a live account today. Didnt even test on demo. 500. Total at end of day, 650.
theres another one that said you can never lose. Tested on demo. really didnt lose . Take a look and give a like. The all famous FXStabilzer vs one of my mid and top tier