I like the circle of highlights and the colors here! It may have been overprocessed, though. You may want to experiment with the radius of your Unsharp Mask.
Lots of beautiful colours and lights, but I think I would have shot this more on an angle (and filling the frame more) to add interest to the shot. I personally would like to see more of these. Good Job!
Love the beautiful colors in the broach. Great lighting. Love the way that each of the round marble shaped items have the ring of light. The black background really helps to lift this off the page.