
When it comes to romance, few things capture the imagination quite like a royal wedding—or a royal engagement ring. From historic heirlooms to custom designs, modern royal women wear some of the most incredible (and expensive) gemstones. But which royal ring is worth the most? Jewelry specialist Anya Walsh at 77 Diamonds analyzed some of the most popular engagement rings for the Daily Mail—and the most expensive on the list probably won't surprise you.
Princess Diana's sapphire and diamond ring became instantly iconic when she debuted the 12-carat Garrard sparkler in 1981, and Prince William went on to propose to his own future wife, Kate Middleton, with his late mother's ring in 2010. During their engagement interview, William admitted he'd been "carrying it around" in his rucksack "for about three weeks" while they were on vacation in Kenya. "It's my mother's engagement ring so I thought it was quite nice because obviously she's not going to be around to share any of the fun and excitement of it all—this was my way of keeping her close," he shared.