Step 1:
The folding paper has the same size as two squares glued together. I taped red glossy wrapping paper to one side.
Fold over the line on the right and prefold in half over the other line.

Step 8:
Fold over these two purple lines.

Step 6:
Prefold over the line on the right.
Then prefold the left edge to this prefolded line.

Step 11:
Fold both corners inwards and the edges into a straight angle. Use tape or glue.

Step 10:
Mountain-fold over the purple lines and valley-fold over the white lines.

Step 9:
Prefold over these two lines.

Step 5:
Press flat.

Step 7:
Prefold both parts in half

Step 3:
This is the other side.
Fold over these two purple lines.

Step 2:
Fold a little off the centerline

Step 4:
Fold over these two lines.

Step 12:
Fold into a straight angle, use the prefolded lines as guidance.
Use tape or glue.

Step 13:
Repeat step 12 over these lines

Done!

Picture: Real and Origami jewels, accessories and Makeup