Which term is defined as a tiny area of impact with root-like feathers visible at 10X magnification, typically at a facet junction?

Which term is defined as a tiny area of impact with root-like feathers visible at 10X magnification, typically at a facet junction?

• A. Burn Marks (Brn)
• B. Central Selling Organisation (CSO)
• C. Bruise (Br)
• D. Cavity (Cv)

Answer: (C)

Bruise is a small impact site in a diamond where an area has been struck, creating root-like feathered fractures that can be seen at 10x magnification. These feathery lines typically radiate from the impact spot and are most common at facet junctions, where the crystal lattice and cutting lines meet and stresses accumulate. This combination—a tiny impact area with feather-like fractures visible at 10x and located at a facet junction—fits the description precisely. Burn marks would look like heat-related discoloration rather than feathered fractures, cavities are actual voids, and the other term is unrelated to diamond damage.

Bruise is a small impact site in a diamond where an area has been struck, creating root-like feathered fractures that can be seen at 10x magnification. These feathery lines typically radiate from the impact spot and are most common at facet junctions, where the crystal lattice and cutting lines meet and stresses accumulate. This combination—a tiny impact area with feather-like fractures visible at 10x and located at a facet junction—fits the description precisely. Burn marks would look like heat-related discoloration rather than feathered fractures, cavities are actual voids, and the other term is unrelated to diamond damage.