Hi Judytrue2- Welcome to the forums!
I think you are playing Adventure Chronicles..so..
BLUE GEM – press the symbols on the wall in this order – 2 feathers, 2 beetles, snake, 1 feather, one beetle.
TREASURE- place the blue gem in the ceiling, upper left. Turn the outer ring to the cow, the next ring to the jar and the center ring to lips(?). Place the blue gem in the center of the wheel. Click on the treasure.
Here's the address for the forum for this game:
http://forums.bigfishgames.com/forums/show/1049.page
Edited on 12/30/2008 at 2:51:16 PM PST