This necklace was 1st worn by The Queen in 2002, to a Golden Jubilee Dinner hosted at 10 Downing Street. Later worn for State Visit of King Abdullah of Saudi Arabia State Visit 2007 I have come across info saying that this jewellery was a gift from King Abdullah whilst Crown Prince. Did he come in 1987 with his father King Fahd for that State Visit? Might it have been a gift then?