I'm giving this place 2 stars instead of 1 because they're the only remaining OG Chinese restaurant left in Phoenix. The other two, Lucky + China Doll are long gone. Diamond is a pretty typical Chinese restaurant from the 70's. Red/yellow decor throughout with food served on ghetto hard plastic plates with Chinese floral designs.
In terms of food, you'd think after 30 some years of practice they'd be able to master at least the basics. Nope! It is as bad as when I was a kid. I guess you can say they're consistent. A few years ago they were busted for illegally roasting massive quantity of ducks out back and shut down for a couple of months. So you can chuck sanitation right out the window. The only reason why I come back every so often is because it brings back fond memories of dining with my grandmother.