Meghan Markle donned Princess Diana’s jewellery on her latest outing without Prince Harry. The 43-year-old made an appearance at youth organisation Girls Inc. of Greater Santa Barbara earlier this month. The American non-profit organisation which encourages girls to be “Strong, Smart, and Bold”, has partnered with #HalfTheStory, a non-profit dedicated to improving the next generation’s relationship with technology. For the visit, Meghan wore her Cartier Tank Française gold watch that was a gift from the late Diana, Princess of Wales’s personal collection. On formal occasions, Princess Diana wo…