Cost efficient HD 3D printer for direct casting

Can someone help me with information on the available options for precise 3D printers for wax-like materials suitable for jewelry.

Requirements:

Important:
- Ultra high resolution and surface quality - 10µm (Z) or less.
- Optimized material for Direct Casting
- Relatively inexpensive (for small shop)

Not important:
- Build Size
- Build Time
- Cost of material
- Maintenance complexity
- After-sale support

I am not very experienced with the brands, technology and cost. I would very much appreciate if someone could advice me on that.