CAD Design Innovative Rings Using 3D Printing

I need someone familiar with the positives that designs can bring when 3D printing jewelry in wax, so I need a jewelry designer who has worked with 3D printers, and knows what kind of designs are suitable to be printed in 3D printing and not hand made, and also what designs can not be manually made, but can be made using 3D printer, and then casted. I will do all the process but need about 10 unique gold ring designs without the use of gemstones.