Q. The basic reason for the extraordinary sparkle of suitably cut diamond is that

A) it has a very high transparency

B) it has well defined cleavage planes

C) it is very hard

D) it has a very high refractive index

✔ Correct Answer: it has a very high refractive index

Exam Insight

The extraordinary sparkle of a suitably cut diamond is due to its ability to reflect and refract light through multiple facets, creating brilliance.

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