On Sunday, July, 15, 2012, Her Royal Highness Princess Caroline of Hanover celebrated her son, Mr. Andrea Casiraghi, engagement to the beautiful Ms. Tatiana Santo Domingo at a private villa in the south of France.
The newly engaged couple arrived at the villa aboard Princess Caroline’s yacht, Pacha III, along with their close friends and Princess Alexandra of Hanover.
By the way, check out photo #71 and you will see for the first time Ms. Santo Domingo’s engagement ring. It is stunning! 🙂
Source: Zimbio
royalcorrespondent.com 
Her ring is a rock! So jealous.