Kate Middleton

The bridal token of Kate Middleton is said to be worth around $500K, but it’s actually priceless. The iconic gem once belonged to the legendary Princess Diana, the mother of Middleton’s husband, Prince William. They exchanged vows in 2011, in a typically grand Westminster Abbey Royal ceremony.

The jewel features a massive central, oval-shaped sapphire that’s surrounded by 14 smaller stones. The ring itself is made of white precious materials, and its story dates all the way back to the 19th century. Before reaching Diana’s hand, the historical jewel was worn by Queen Victoria. Garrard crafted it in 1840 as a gift from Prince Albert.