What term describes lighting of a diamond from the side against a black, non-reflective background?

What term describes lighting of a diamond from the side against a black, non-reflective background?

• A. The diamond's physical shape
• B. Lighting of a diamond from the side against a black, non-reflective background
• C. Path from mine to consumer
• D. The process of separating diamonds

Answer: (B)

Side lighting is used to study how a diamond catches and returns light when illuminated from the side against a dark, non-reflective backdrop. This setup creates strong contrast, making flashes of color (fire) and the sparkle (scintillation) easier to observe, and it highlights facet precision and symmetry. It’s a standard technique for evaluating how well light is distributed by the cut. The other options describe different concepts (the physical shape refers to cut style, the path from mine to consumer is a supply chain, and the process of separating diamonds is mining-related) and do not name a lighting setup.

Side lighting is used to study how a diamond catches and returns light when illuminated from the side against a dark, non-reflective backdrop. This setup creates strong contrast, making flashes of color (fire) and the sparkle (scintillation) easier to observe, and it highlights facet precision and symmetry. It’s a standard technique for evaluating how well light is distributed by the cut. The other options describe different concepts (the physical shape refers to cut style, the path from mine to consumer is a supply chain, and the process of separating diamonds is mining-related) and do not name a lighting setup.