Rough manufacturing costs are required. Potentially will be working with titanium.
Is 3D printing an option? Or will it have to be cast first?
Most importantly, I need to figure out costing per unit, and would like to chat with someone who is experienced in both 3D printing AND other jewelry manufacturing processes.
I don't have that much experience in jewelry but I do have experience with 3D printers and prototyping.
One of your best solutions is to use both. Using a strictly metal 3D printer would be so costly as to be prohibitive. However, there are 3D printers that can make castings. That way, you can customize the part exactly as you wish, 3D print it, then cast the part in any material you'd like. You would have a wide array of options without the high cost of going straight into 3D printing metal.
Possible issues would come as casting with the 3D printed part might not be at the resolution that you need for delicate, precise jewelry. At that point, using a 3D printer would go back to just prototyping design then the casting would come once a final choice is made.
If you have additional questions please feel free to contact me.