Daniela Mascetti is Sotheby's Chairman of Jewellery in Europe. She joined Sotheby's in 1980, opening the firm's Milan-based department. She is one of Sotheby's most experienced scholars in the history of jewellery, and has collaborated extensively in the sales of historic collections. Her research has assisted with several notable auctions, from The Jewels of the Duchess of Windsor to the collections of Elton John and Gina Lollobrigida.