Question

if we cut glass in shape of diamond then will it refract the light in same way as the diamond does??​

Answer 1

ANSWER

Diamond shine more than glass piece of the same shape.It is due to the refractive index of both the medium that is R.I of diamond is more than that of glass .Hence critical angle of glass is more than that of diamond causing more total internal reflection in diamond/making it shine.

Answer 2

no because refractive index of glass will not change as diamond have