The tasks that a Gem Polisher, Hand is expected to perform include:
Polishing gems according to specification by special manually or mechanically operated polishing wheels
Holding jewels by shellac on small bamboo stock
Fitting required type of polishing sheel (lead for soft stone such as emerald, spinel, yellow topaz, etc. copper for hard stones such a ruby, sapphire, etc. and steel plates for diamonds) and starting wheel
Applying water to wheel and pressing stone against its surface
Checking stone frequently while polishing for finish
Polishing and giving the stone final touches