The main reason behind the stunning shine of every piece of diamond jewelry like a 15-carat diamond ring is its property to reflect, refract, and disperse light. Below is a quick look at the reasons behind the color of the diamond.  
  • The initial brilliance of the diamond jewelry comes from its property to reflect light. The light that hits the surface is immediately bounced back. However, the major portion of sparkle is stemming from the property of refraction and dispersion.
  • When light enters a diamond, it undergoes refraction. Thus, it bends, then hits another surface, and undergoes reflection again. This cycle is repeated again and again and results in the emitted sparkly light. This looks very bright and gives it the characteristic shine.
  • A diamond acts as a prism. Hence, it splits the color and reflects it around, before reflecting it back to the viewer. The dark bands created as a result of the continuous reflection and refraction also complements the shine in a big way. This darkness creates an excellent contrast, which magnifies the effect of the sparkles. This is also the reason why diamonds with contrast seem to shine brighter than those without contrast.