How do you hang diamond art without a frame?

The neatest way is to mount the canvas on a rigid board (foam board or a light panel) with double-sided tape, then hang the board with removable wall strips or a small hook. You can also stretch it over a wooden stretcher.

Without glass, apply a sealer to keep dust off the drills, and avoid a wall in direct sunlight. Bulldog clips work as a quick fix, but the canvas may warp.