Celebrities are known for going all-out for love. Just look at Orlando Bloom and Katy Perry. The "Pirates of the Caribbean" actor and "Teenage Dream" singer got engaged six years ago, on Valentine ...

If the speculation is true, Zendaya's cushion-cut diamond would rank as one of the most expensive celebrity engagement rings of all time. So, while the internet anxiously awaits an official ...

This $500,000 heirloom might not be the most expensive ring on the list, but it's sentimental value is worth so much more. Princess Diana also wore this ring while she was engaged to Prince Charles.