Question

what causes brilliance of diamond

Answer 1

The artisan attempts to cut a diamond to make the best use of light. When a diamond is cut to good proportions, light is refracted from one facet to another, and then reflected and dispersed through the top of the diamond. ... It is the placement of facets, not the number of facets, which affects a diamond's brilliance.

Answer 2

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What causes brilliance of diamond.?

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$\Large\bold\star\underline{\underline\textbf{Diamond's Brilliance\:}}$

→ Brilliance of diamond is due to total internal reflection of light.

→ The refractive index for diamond is 2.42. Therefore, the critical angle for diamond at air interface is,

» Sin C = 1 / n

» = 1 / 2.42

» = 0.4132

→ C = 24.40°

→ The diamond is cut suitably so that light entering the diamond from any face falls at an angle greater than24.4°. Hence, light suffers multiple total internal reflections at the various faces.

→ In the end, the light emerges out from some place in certain directions. This makes the diamond to sparkle.

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Hope it helped u.

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