Easily the most recognizable engagement ring in the royal family and the world, Princess Diana’s blue Ceylon faceted sapphire ring comes in at a whopping ... ring was set in platinum on a yellow gold ...

The impressive ring, which features a 12-carat Ceylon sapphire surrounded by 14 solitaire diamonds set in white gold, made its return after Kate had worn a different eternity band in recent months.

Princess Diana’s extravagant engagement ring, which is 12-carat Ceylon sapphire, is adorned with a cluster of 14 diamond sets ...