Gold Golem, Diamond Golem, Emerald Golem!

A Gold Golem that Harvests your crops for you and places it in Barrels (or gold barrels)

A Diamond Golem which would be a stronger version of the Iron Golem, perhaps it could climb out of water, and have faster speed or some other buff. (share your ideas) or you could give it weapons 

An Emerald Golem cuz why not, what should it do?