Diamond Clutch is the toprope problem following the black streak 15' right of The Chimney route. This is a pretty good beginner route, but some might find the Hueco Wall climbs to be easier than this one, as those are less sustained.
Start a little to the right of the black streak, angle left initially, then stay left of the streak. Like many on the Waterfall Wall, it's steep for the grade and the holds never quite feel positive, though there are many to choose from.
Toprope from bolts at the top.