A product model for a client of mine, this was a quick simple project Making gems might surprise you by being a pretty simple process. You just need to follow the physically accurate nature of gems. Make sure it’s faceted, which if you use Blender there is a convenient add on called Extra objects which has gems in it (they can be adjusted like the long ones in model). Then the material needs to be set up to break light like gems do, creating the sparkling effect. You can see my full material set up on my website Tomations: http://www.tomations.com/Tomations-Animation-Modeling-Misc-Diamond-Ring-Coming-Soon-

Polygons: 16,472
Verts:   16,493
Samples: 1000
Resolution: 1920x1080
Software: Blender 2.79
This model was made in Blender. As such some features may not be included in 3ds Max, Maya, or other 3D Software.

Resources and References used
  • Images of Diamonds for reference
  • Images of silver bands for reference