Popsugar Celebrity The Royals Kate Middleton and Meghan Markle's Royal Debuts You'll Love Looking at Meghan Markle and Kate Middleton's Royal Milestones, Side by Side May 9, 2019 by Britt Stephens View On One Page Photo 5 of 36 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Kate's First Borrowed Diamonds Kate wore the Cartier Halo Tiara, her first borrowed diamonds from the royal vaults, on her wedding day in April 2011. Previous Next Start Slideshow Meghan MarkleThe RoyalsKate MiddletonThe British Royals