What modern developments made diamond cutting more efficient and more profitable?

• A. The use of laser processing only.
• B. The adoption of rough mapping and computerized planning only.
• C. Rough mapping, computerized planning, and laser processing made diamond cutting more efficient and more profitable.
• D. The use of traditional hand drafting.

Answer: (C)

The idea being tested is how combining advanced technology with planning boosts efficiency and yield in diamond cutting. Rough mapping involves scanning the rough stone to map its exact size, shape, orientation, and internal features like cracks or inclusions. This data let you see where you can get the most weight out of the rough without compromising the gem’s symmetry or quality.

Computerized planning uses that mapped information to simulate many possible cut layouts. It calculates the most efficient arrangement of facets, determines optimal girdle diameter, crown and pavilion angles, and the sequence of cuts to maximize final weight while achieving the desired appearance and quality. This planning reduces trial-and-error, speeds up decisions, and improves consistency.

Laser processing provides the actual cutting and shaping with precision that’s hard to match by hand or with traditional saws. Lasers can make very fine, repeatable cuts, minimize chipping and waste, and speed up material removal. They also enable complex faceting and exact control over angles and depths, which improves yield and finish quality.

Together, rough mapping, computerized planning, and laser processing create a streamlined workflow that increases material yield, reduces production time, lowers labor costs, and improves consistency and quality—leading to greater profitability. Relying on traditional hand drafting lacks the precision and optimization enabled by the integrated use of mapping, planning, and laser technology.