Meghan Markle, 39, appeared as campaign chair for starstudded Vax Live gig
Duchess of Sussex wore £1,200 Carolina Herrera dress for appearance last night
Added a glitzy look with Princess Diana s £17,800 Cartier watch and gold jewels
Royal also wore £5,000 Cartier Love bracelet and a £2,361 gold bracelet
Known for her love of symbolic jewellery and wore a woman s power necklace