Noonans Mayfair The ring features a principal cabochon stone, or a rounded, polished center gem. In this case, the center stone is a sapphire, and it’s surrounded by two emeralds and two stones ...

In the beautiful photo, taken in 1980 ... by diamonds and was given to Princess Anne in May 1973. While sapphire engagement rings are a popular choice with royals, with Prince William giving ...