Diamond charts are used to visualize whether our data is in a good or bad state based on two parameters. In a typical scatter plot, when both parameters are positive, the top-right corner represents the best values and the bottom-left the worst. Therefore, we have to interpret the good-bad assessment diagonally. To make this interpretation easier, we rotate the chart 45 degrees counterclockwise to create a diamond chart, placing bad values at the bottom and good ones at the top.