what do the gem cases look like

I have reached the gem cases portion and cannot find a single one. I know I cannot advance until they are all found. Please help.

Never mind...... I found the solution.

What is the solution? I can't seem to find the gem box. Thanks for your help.

The gem box is a small brown wooden looking box, its never at the same place each time you play so really cant tell you exactly where it is,,,,