Popsugar Fashion Celebrity Fashion Why Meghan Markle Can't Wear a Tiara This Is the 1 Tiara in the World Meghan Markle Can't Wear on Her Wedding Day 26 April 2018 by Nikita Charuza First Published: 17 January 2018 View On One Page Photo 2 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Kate Middleton Wearing a Tiara at the Diplomatic Reception at Buckingham Palace in 2017 She wore Princess Diana's tiara with a white embellished gown. Previous Next Start Slideshow Celebrity FashionThe RoyalsRoyal Wedding 2018Meghan MarkleTiarasThe British RoyalsRoyal WeddingAccessoriesPrince HarryKate Middleton