Question

Why is diamond lustrous?

Answer 1

The refractive index of diamond is very high (2.417)............. Light enters from all sides of the diamond and bounces off several facets before leaving. The farther the light travels before leaving, the more it separates into the rainbow of colors that make it up......................... A diamond's dazzling sparkle is a result of the light's bouncing travel inside it...........

Answer 2

Explanation:

The diamond has a very bright luster because of its ability to reflect the high percentage of light that strikes its surface. The diamond has a prism like appearance, which increases the reflection of light incident on the diamond at different angles giving diamond a sparkling appearance.

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