text: Kate Middleton Honors Queen's 73-Year Marriage With Diamond Necklace At Prince Philip's Funeral | Access
  Kate Middleton wore a very special necklace to the funeral of Prince Philip at St. George's chapel on Saturday morning. The Duchess of Cambridge, who arrived wearing a black Roland Mouret dress and fascinator, was seen wearing a diamond and pearl necklace that was on loan from Queen Elizabeth.
  The striking piece of jewelry was once worn by Princess Diana in 1982 when Queen Beatrix of the Netherlands arrived for a state visit, but it was originally fashioned for the Queen.
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  The so-called Japanese Pearl Choker is a four-strand necklace with a central diamond clasp that was commissioned by the Queen and made from cultured pearls presented to her by the Japanese government. According to Her Majesty's Jewel Vault, the Queen made her first state visit to Japan in 1975 and the choker was in use by the early 1980s.