Answer:
Diamond has a higher refractive index of 2.42 as compared to glass that has a refractive index of 1.5
Step-by-step explanation:
The refractive index of a material is a number that describes how fast light travels through a material. It is a measure of the bending of a ray of light travelling through a material.
When the refractive index is high, the more the light reflects. In this case, the refractive index of glass is 1.5 and that of diamond is 2.42.
Light will bend more when it hits diamond as compared to when it hits glass. This is one of the reasons why diamond sparkle so much.