Question

The sparkle of a diamond can be explained by which phenomenon of light?

Answer 1

Diamonds are the star of many of the most lavish pieces of jewelry in the world, but what makes these small rocks shine the way they do? The short answer is that they are expertly cut and polished to maximize the diamond’s natural brilliance. The full answer is much more detailed.

Diamonds get their brilliance from three things: reflection, refraction and dispersion. Reflection is the light that hits the diamond and is immediately bounced back up, giving it an instantaneous shine. While this glimmer is impressive, it’s only the very tip of the true radiance a diamond displays. Only a portion of the light hitting a diamond is reflected; the rest travels through it.

Answer 2

Total internal reflection

sparkle of a diamond can be due to its lustrous nature

diamond is made up of a non metal i.e. carbon

it is lustrous because of the consecutive TIR