They are price tens of millions of kilos, and saved safe in the vaults beneath Buckingham Palace. They constitute love, energy, and intrigue. Their good looks is famed and their historical past is exclusive â€” one was once just about misplaced to a royal mistress, one was once the matter of investigation, and any other has hyperlinks to historic historical past. They are the queen’s maximum spectacular and vital necklaces, and now we have rounded up the most sensible 17 in her majesty’s non-public assortment . . .