Opal 620,622, 752(back of stone)
Here's another one of my favorites. I call this piece the koala. It needs to be carved into a koala bear. It's from White Dam Andamooka and its beautiful crystal opal. It weights 28.6 carats and when finished as I think it should be done, it will weigh more than 20 carats. This is the rarely seen material that goes for big $$$ when finished. Not much opal around Andamooka these days. Here's one of the last chances for something like this. $500/gram 5.72 grams. Price $2860.