1. DiamondsThey call it the Princie, but maybe they should call it the Princely, based on the regal sum it fetched at an April 16 auction. The 34.65 ct. fancy intense pink cushion-cut scored $39.3 million ($1.1 million per carat) at Christie’s New York—making it the most expensive jewel sold in the house’s 200-plus year history. It also now holds the record for the most expensive jewel ever auctioned in the United States. The stone had been owned by Van Cleef & Arpels, which named it after India’s Prince of Baroda after he attended a Van Cleef party in 1960 in Paris. But it’s unclear who owns the pink beauty now; the buyer will remain anonymous.2. CharityThe silver shoe tag, designed by jeweler/runner Daniel WellingLike millions of Americans, Daniel Welling was horrified by the April 15 bombings at the Boston Marathon. So the jewelry designer at Welling and Co. in West Ches