Here are some before and after photos of a crystal pendant I have been working on. It was a custom order to fabricate a silver bail to go on top of a piece of crystal.
The crystal still has some brown coloring. I guess that must be iron oxides. I'm no gemologist, so I can't speak to that. The customer that I made this for wanted me to work with it just like it was. I'm pretty happy with how it turned out. It's hard not to be pleased when you're able to bring out those mirror finishes. I hope she will be pleased also. She's getting it today!