Meghan's white Theia gown screamed glamour when she stepped out in Tonga with Prince Harry in October. While she was in white, and Prince Harry was in a black tux, Meghan's Givenchy clutch and Aquazzura heels brought their outfits together. Not to mention, Meghan was rocking the aquamarine ring that she also wore on her wedding day, an heirloom from Prince Harry's mom, Princess Diana.