Which term describes the visual phenomenon of light spots moving as the diamond or light source moves?

Which term describes the visual phenomenon of light spots moving as the diamond or light source moves?

• A. Sorting pad
• B. Sparkle
• C. Subduction
• D. Supplier of Choice

Answer: (B)

The visual effect at play is sparkle—the way light returns to your eye in bright spots that seem to move as you or the light source changes position. A diamond’s facets act like tiny mirrors and prisms; when you tilt the stone or shift the lighting, different facets catch and reflect light, causing the bright patches to shift across the surface. This dynamic pattern is what we call sparkle, and it’s a key clue to how well a diamond’s facets are aligned and how it handles light. The other terms don’t describe what you’re seeing: a sorting pad is equipment used in processing, subduction is a geological term unrelated to optics, and supplier of Choice is a procurement phrase.

The visual effect at play is sparkle—the way light returns to your eye in bright spots that seem to move as you or the light source changes position. A diamond’s facets act like tiny mirrors and prisms; when you tilt the stone or shift the lighting, different facets catch and reflect light, causing the bright patches to shift across the surface. This dynamic pattern is what we call sparkle, and it’s a key clue to how well a diamond’s facets are aligned and how it handles light. The other terms don’t describe what you’re seeing: a sorting pad is equipment used in processing, subduction is a geological term unrelated to optics, and supplier of Choice is a procurement phrase.