I have a tungsten carbide wedding ring, which also rates 9 on the Mohs scale. It's totally scratched up around the outside, and shiny around the inside, after t

I have a tungsten carbide wedding ring, which also rates 9 on the Mohs scale. It's totally scratched up around the outside, and shiny around the inside, after ten years. And I'm careful to take the ring off before I use abrasive materials such as sandpaper and diamond sharpening tools.