The Princess of Wales debuted the pendant, believed to be a gift from Prince William, in 2015. She matched the necklace with Princes Diana's earrings The Princess of Wales showcased one of the lesser seen treasures from the royal jewellery box as she stepped out for an Anzac Day memorial service in London. Catherine, 44, wore a tanzanite and diamond pendant as she represented King Charles III at t... [4512 chars]