Watch the tutorial on my YouTube channel.
This is one of my favorite folds, but it's also the most difficult to describe. If the instructions are hard to follow, check out my tutorial on YouTube.
Fold in half diagonally, then unfold. Fold the lower right side in, aligning the edge with the previous valley fold.
Repeat with the left side.
Now you have a kite fold.
Fold the top point down and to the left so that it aligns with the left point.
It should look like this.
Unfold and repeat on the right side.
Unfold. Pull the inner left corner down, reversing the valley fold into a mountain fold as shown. Do this while folding the top center point down to the right side again.
It should look like this.
Push the bottom layer of the right corner to the center while pushing the top layer up and out so that it forms a peak.
Flatten the peak formed in the previous step so that it forms a square.
The finished tile should look like this.
Eight tiles make a medallion.