Who designed Princess Diana's aquamarine ring? • Princess Diana's aquamarine ring was originally designed by the renowned British jeweler, Asprey. The design features a stunning emerald-cut aquamarine stone set in a simple yellow gold band. • The ring was later gifted to Princess Diana by her friend, the businessman Richard Burton, and has since become one of her most iconic pieces of jewelry. The ring's unique design and exquisite gemstone have captured the world's attention, solidifying its place in royal jewelry history.