There is no option to play live games with only other diamond members. The vast majority of players are playing fairly.
https://www.chess.com/article/view/online-chess-cheating#accuracy
That said, discussions about cheating, potential cheating, or cheat detection are not allowed in the general forums. If you want to discuss join the following club.
https://www.chess.com/club/cheating-forum
I searched about it but couldnt find. Is it an option? I keep getting points from past cheaters. This is so annoying. I cant enjoy the game. In the middle of the game where I do great then he stops and then starts doing amazing things that I can stand no chance against. How can I play against lesser cheaters?