Hi there! I would love to help you designing your diamond jewelry in 3D. I can make the designs with all the variations you mentioned. Also, I can make photorealistic renders if you need them!
I have +5 years of experience creating 3D models in Fusion 360. I know how to make 3D models from reference images, an example is the Davinci XI surgeon robot that I made based just on reference images, without blueprints. Also In my portfolio, you will find that I made a scale car and other products: https://www.freelancer.es/u/VitasCiabis
The budget will be 1500 INR, separated into 3 milestones: first version, first modification, and last modifications, to guarantee the quality and utility of the design and renders created. But we can negotiate the price!
I am looking forward to your message!