“A diamond is forever,” but the makers of that slogan considered it a two-way street, connecting a diamond’s billion-year past with an infinite-future. They never imagined someone proposing with a “forever” diamond that’s younger than the bride.
When the Great Imperial Crown was made for the coronation of Catherine the Great in 1762 the court jewelers believed they were topping over 5,000 diamonds and pearls with an enormous 398 carat ruby. But it was never so. They had been fooled by a charming imposter.