It's funny when I first had the idea to do a harlequin pattern on a feature wall back in my Chandler house in 2005, I never imagined it would evolve to what it is today. Back in Chandler I just couldn't get the Gold color right, yellows are the hardest for me to figure out. Then in the Mesa house, it came out with a yellow tint, when I was just going for glossy, but finally in the Gilbert house it's just right...am I starting to sound like Goldie Locks and the three bears? All I did was make a template out of cardboard of a diamond that was to scale of what I wanted then I used blue painters tape to hold it up on the wall and used the blue tape to tape around the diamond. I continued it across the wall. It really didn't take very long at all.