I need help designing my girlfriends ring

I (M35) am planning on proposing to my girlfriend (F31) of 3 years.

She is beautiful and warm and reminds me of Snow White in the sunshine? Even down to her complexion and features if that is important. This woman stops to give sugar water to tired bees and would give her last dollar to someone worse off than her. She deserves everything I could give her and so much more.

BUT SHE DOESNT WEAR JEWELRY Not a single thing. She is simple and has said time and time again that she doesn’t need much of anything but WHAT DOES THAT MEAN.

Can you please help me with simple but beautiful rings worthy of an incredible woman?