3D photo crystals—how do they work? They say that at some point, technology is indistinguishable from magic. How else could we perform the miracle of etching a beautiful, 3-dimensional image deep inside the hide of fine crystal? I mean, the crystal, even with the 3D photo inside of it, is flawless and unmarred. This begs explanation. The answer, of course, isn’t magic—not quite. You don’t need magic to create a 3D photo crystal, you need a lasers. Let me explain how the process works.