What if there were only rhombi for real?
This flagstone tessellation is assembled in lines and so it zips right along!
You'll need a 24-fold triangle grid on a square to fold along with this video.
If you're struggling to set up the rhombus twists I recommend practicing with these tutorials first:
Rhombus twists: https://youtu.be/nfEpY1cIwhY
Alternating rhombus twists: https://youtu.be/0RZDkjOo0ro
The paper used in this video is Skytone and it’s my top recommended paper for new tessellation folders. Get some for yourself here: https://gatheringfolds.com/products/full-paper-pack
Learn all the basic tessellation techniques (including how to fold the grid for this video) in my free Tessellation Foundations course here: https://training.gatheringfolds.com/start
Sign up for Basic Twists Bootcamp to practice the 8 most basic twists: https://training.gatheringfolds.com/btb
My most thorough resource for learning to read crease patterns is the 50-lesson Tessellation Starter Sequence that teaches twists, structures, and how to identify them in crease patterns: https://training.gatheringfolds.com/sseq