Using a diamond cutter and then cutting those shapes in half would give you even sized, already bevled on the side stripes to use on this pattern. Hope that helps.
Looks to me like its just six million tiny little strips of fondant painstakingly placed in that pattern, with half the strips having a little shading on the bottom side.
WOWZA! What a ton of work!
There's at least 140 on the top tier alone...