The bruting machine is associated with which advancement?

The bruting machine is associated with which advancement?

• A. The development of laser processing.
• B. Introduction of continuous rotary motion.
• C. Mass production of faceted diamonds.
• D. The adoption of the old European cut.

Answer: (C)

The main idea here is how automation changed diamond finishing from hands-on craft to production-scale work. A bruting machine mechanizes the shaping step, using rotating wheels to wear two diamonds against each other to form a round girdle with consistent symmetry and size. This automation makes the bruting process much faster and more uniform, enabling many stones to be cut in a shorter time and with repeatable results. That shift—from individual, artisanal bruting to a factory-style, repeatable process—drives the mass production of faceted diamonds, which is the reason this option is the best fit. Other choices describe technologies or cuts that are either later developments or not tied to the industrial shift in bruting.

The main idea here is how automation changed diamond finishing from hands-on craft to production-scale work. A bruting machine mechanizes the shaping step, using rotating wheels to wear two diamonds against each other to form a round girdle with consistent symmetry and size. This automation makes the bruting process much faster and more uniform, enabling many stones to be cut in a shorter time and with repeatable results. That shift—from individual, artisanal bruting to a factory-style, repeatable process—drives the mass production of faceted diamonds, which is the reason this option is the best fit. Other choices describe technologies or cuts that are either later developments or not tied to the industrial shift in bruting.