Crown jewels: The fabulous rings which sealed the love of Europe's royal couples

Just four months later, and there was cause for double celebration with a second engagement announcement from the Swedish royal court. Victoria's younger sister Princess Madeleine had been asked for her hand in marriage by her lawyer love Jonas Bergstrom, who got down on bended knee with this emerald cut diamond ring.

Sadly though, their union was not to last. The couple parted ways in April 2010, amidst rumours that Jonas had been unfaithful with a Norwegian student on a skiing trip