Board Thread:General Discussion/@comment-24583427-20140927143025/@comment-26408694-20140930225933

Here is what I think the gems are:

Big Bird is platinum (hey, pearls aren't necessary gems.) Electric skulls are Emerald Pillow is peridot Moss is tourmaline Ice Monster is Aquamarine Cave Monster is Sapphire Centipeedle is Jade or Turquiose Crystal shrimp are not gems Robot Shooty Thing is Topaz, Rubilite, or Granite Lion is not a gem or Rubillite