ZBrushCentral

Getting a Metallic PolyPaint

I mostly work in jewelry but need to do some rendering of silver jewelry. I am finding it tough to keep from losing detail with all the reflectiveness in Keyshot and if I rough the surface too much it starts looking artificial.

Can anyone tell me if there is a way to polypaint a nice silver in Zbrush that I can export to Keyshot and while keeping good detail ?

Thanks