Leonardo Maria del Vecchio offered to buy the Delphin family's stake for 29.6 billion euros The heir to the Ray-Ban empire described his plan to buy Delphin Sarl in a letter published in his newspaper QN, Bloomberg reports. The holding itself is estimated at 29.6 billion euros ($33 billion). According to agency sources, Del Vecchio received a €22 billion loan from Citigroup Inc. to complete the deal. According to Corriere della Sera, the proposal calls for a payment of 3.7 billion euros to each of the seven remaining heirs.