My DH surprised me with a custom ring when he proposed. People compliment the ring like crazy in person.
Secretly (ok, not so secretly I told him this years after) I wish I got to pick my ring since I'll be wearing it forever. I think you should propose with a placebo ring (something cute that she could wear as her right hand ring) and then have her pick her own ring by letting her look at the pictures in this forum. I think she'll love you letting her pick her ring since her tastes and her look are unique. I like the ring my DH gave me, but I'm not in love with it. It's probably worth $100,000 plus by now with all these diamond increases too. I sound ungrateful I know, but I still wish I picked my ring since I'm the one wearing it, not him.
Just a thought. I'm sure both of you would have fun doing the ring shopping, especially her if you let her choose.
I don't know why I didn't think of that myself. That's a great idea. Is there any way to contact a jeweler and ask for a spread of rings for her to choose from that are within my budget? A variety of shapes too.