The most expensive sapphires are the largest in size ... making it one of the most expensive rings in the entire world. Pink ...

The Queen of Romania Sapphire is a massive gem that weighs 478.68 carats. It once belonged to Queen Marie of Romania and has a stunning blue color. Its impressive size and royal connection make it ...

Worth more than $1 million, the most valuable royal ... As for Eugenie’s engagement ring, she has the rarest one among royals. It features padparadscha sapphires, which are rarer than diamonds.