advanced rendering for AutoCAD
My guess is to check the refraction and reflection ray recursion number settings.
If the cutlery is part of a CAD block, I would go into the block and check the material assignment there.
You may even find that the cutlery is a block within a block in which case you may need to explode it to assign the material properly.
Maybe you could post a link to the block so that we can check it out.