A metallurgist, metalworker, or possibly a smelter or forger of metals.
This profession is known as a StoneMason ; see related link on Stonemasonry .
Usually, a diamond cutter. There may also be descriptive words used to identify the cutter's expertise and experience.
mason
blacksmith
Tech Person
a slave
Employee
someone who works for a business
A mathematician
moofer
An employee.
Landscaper
A BarMan
hydrologist
Railroader
A Chronogist