5. Bleu Royal - $43.8 million The Bleu Royal is another most expensive ring in the world. It is a 17.61-carat vivid blue pear-shaped Type IIb diamond. This ring also has a platinum and 18K rose ...

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 ...

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.

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 ...