Which cut provided an efficient way to use flattened or cleaved rough?

• A. The point cut followed the octahedral rough.
• B. The single cut was the basis for the full-cut modern brilliant.
• C. The rose cut provided an efficient way to use flattened or cleaved diamond rough.
• D. The table cut was the baseline for modern designs.

Answer: (C)

Salvaging as much material as possible from rough that is flat or cleaved was a practical challenge for early diamond cutters. The rose cut directly addresses this by using a shallow, domed crown built from many small facets and a flat base. This design follows the natural, irregular outline of rough pieces, so you can align the cut to the shape you have rather than forcing a modern, deeper faceted form. Because the cut is relatively shallow and uses fewer corrective removals, more of the original mass is preserved, making it an efficient way to utilize flattened or cleaved rough. In contrast, other cuts require more uniform shapes and deeper proportions, which often wastes material when the rough isn’t ideal.