Grace Kelly had two engagement rings - a "temporary" engagement ring of diamonds and rubies while her real engagement ring was being made. Princess Grace's engagement ring was a 10.47 carat emerald-cut diamond set in platinum. She wore it on film during "High Society."
Grace Kelly, who was given not one but two Cartier engagement rings by her Prince charming, Prince Rainier of Monaco. The first was a ruby and diamond eternity band and the second a large solitaire - over 10 carats. It was this one that she refused to ever take off, making it perhaps the most famous