Question

white diamond shine at night?​

Answer 1

Answer:

All diamonds shine when light fall on it... They got refracted.... Diamond refractive index is high.... without light no shining will happen ..

Answer 2

Answer:

The Rays of light entering it get internally reflected from most of the faces, on account of high refractive index so ,from the few faces that permit light to get out , a lot of light comes out.