Hi there!
I have read your project descriptions carefully. I can modify the 3D model of the ring according to your needs using 3Ds Max. I'm sure I can satisfy you with perfect results and my good skills.
I am a mechanical design leader engineer expert in 3D and 2D drawings. My group and i mainly work in industrial design field but we also have done project related to everyday use and artificial drawings such as logos, banners and etc.
So, if you are interested, please contact us so we can talk more about your project.
Here is my profile and portfolio link. https://www.freelancer.com/u/PureMechatronics?w=f
Sincerely~