These are the highest quality rings with authentic looking diamonds in Round brilliant, Oval, Pear, Emerald, Heart, Marquise, etc cut. Each of these 12 rings has a unique design, every one of them are professional grade with high polygon details.
The Silver rings can easily be adjusted into gold within seconds by editing the shader. A Gold shader is included in the C4d file. Vray realistic diamond shader is included, just render and you will get production quality diamonds.