Which term describes the pattern of brightness and contrast in a diamond's reflections?

Which term describes the pattern of brightness and contrast in a diamond's reflections?

• A. Ore grade
• B. Pattern brightness
• C. Pattern
• D. Pavilion angle

Answer: (C)

Pattern describes how light is distributed across the diamond’s facets, creating a specific arrangement of bright and dark areas in its reflections. This term names the overall visual design you see when the stone is illuminated. The other options don’t label that arrangement: pavilion angle is just a geometric measurement of the stone’s lower facets, and ore grade is unrelated to diamond light behavior.

Pattern describes how light is distributed across the diamond’s facets, creating a specific arrangement of bright and dark areas in its reflections. This term names the overall visual design you see when the stone is illuminated. The other options don’t label that arrangement: pavilion angle is just a geometric measurement of the stone’s lower facets, and ore grade is unrelated to diamond light behavior.