The first thing that Youn Yuh-jung bought herself from Tiffany & Co.'s New York flagship store during her maiden trip to America, in 1975, was a serving platter for cheese. It was what she could afford. Over the next couple of years, she added two pieces from the Elsa Peretti Open Heart collection for Tiffany, including a ring and a necklace that, following a robbery, she eventually replaced.