How a reflective material looks depends mutch on the environment and the shape/surface of the object.

A rectangular block of gold looks "wrong". Even in real life. This is the trick if you design jewelry. Good curves and some edges.

Poser is able to make good looking gold. But the material has to be setup for each scene, IMHO. My Poser comes out with good results just with a combination of phong and blinn. No tricks with the reflections. Just IBL with an additional spot.

If render time is an issue and no close-up is needed, I often use "fake reflections". Mutch faster and pretty nice with a good reflection map.

I photographed a lot of jewelry in the past. It's really hard to come out with the "right" golden look.

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