Your quilt top looks great! You did a good job. As for borders, you may just want to experiment. If I read correctly, you are thinking of a narrow inner border of black and gold and then a larger border of the background fabric? I think that would look very good, but I am so bad at those decisions that I would have to lay each fabric by the top and see how it looked.
At any rate, I am confident that you will make a good decision.
Dina