Excellent! That slight shadow really shows the three-dimensionality.
If your camera is adjustable, you can open the f/stop (aperature) a notch to allow a bit more light and then you don't have to fiddle with the software. I still use software because I haven't figured out how to do it on my camera.
If you want to play around with it, some software will allow you click on the background and it will automatically change it to stark white. Some people really like the look. Personally, I prefer the softer background and think it makes jewelry look more inviting, but that's just me.