My girlfriend keeps dropping heavy hints about tying the knot and practically telling me right to my face that it's time to make things official. I really want to pop the question soon and get her a genuinely stunning ring for the proposal. She usually wears pretty intricate jewelry and definitely won't be thrilled with just a plain band and a tiny stone. What kind of design should I actually be looking at for someone with high-end taste, and where can I check out some truly luxurious options?