Their hue, said to resemble the color of forget-me-nots, reinforced the sentiment of enduring romance.

Set in 18-carat white gold, its 12-carat Ceylon sapphire is surrounded by 14 diamonds.

Anne, Princess Royal

Both of Annes engagement rings have featured sapphires as their central stones.

Image may contain Meghan Duchess of Sussex Face Happy Head Person Smile Accessories Jewelry Ring and Adult

Photo: Getty Images

You see, she toldThe Timesin 1973, its pretty simple.

Recently, meanwhile, William is believed to have bought Kate a diamond-and-sapphire eternity ring after her cancer recovery.

Image may contain Alexis de Tocqueville Queen Victoria Art Painting Person Adult Wedding Face Head and Accessories

Photo: Getty Images

Image may contain George V Alexandra of Denmark Clothing Formal Wear Suit Coat Face Head Person and Photography

Photo: Getty Images

Image may contain Mary Princess Royal and Countess of Harewood Person Face Head Photography Portrait and Adult

Photo: Getty Images

Image may contain Queen Elizabeth The Queen Mother Person Adult Face Head Clothing Hat Coat Accessories and Bag

Photo: Getty Images

Image may contain Wallis Simpson Face Head Person Photography Portrait Teen Formal Wear Blouse and Clothing

Photo: Getty Images

Image may contain Elizabeth II Petr Splený Photography Camera Electronics Accessories Jewelry Ring and Adult

Photo: Getty Images

Image may contain Antony ArmstrongJones 1st Earl of Snowdon Princess Margaret Countess of Snowdon Person and Adult

Photo: Getty Images

Image may contain Diana Princess of Wales Body Part Finger Hand Person Accessories Jewelry Ring Blonde and Hair

Photo: Getty Images

Image may contain Anne Princess Royal Baseball Cap Cap Clothing Hat Face Head Person Photography and Portrait

Photo: Getty Images

Image may contain Lucinda Williams Person Blonde Hair Accessories Jewelry Ring Adult Bracelet and Necklace

Photo: Getty Images

Image may contain Face Happy Head Person Smile Dimples Adult Accessories Jewelry Ring Photography and Portrait

Photo: Getty Images

Image may contain Meghan Duchess of Sussex Face Happy Head Person Smile Dimples Adult Black Hair and Hair

Photo: Getty Images