Beautiful ring! Aquas are my favorite, and my birthstone.
My mom had a beautiful ring with a heart shaped aqua which I always admired as a child, and she gave it to me when I graduated high school. Unfortunately, I took a year off grad school to "experience life" and lived in a house full of hippie-types...and the ring disappeared sometime during that year. I assume someone stole it and and probably pawned it for a few bucks. I've never gotten over it...