An amazing auction and the recognition of a large number of Women of Distinction – past and present – made the 30th anniversary Diamond Winter Ball one for the record books. Not one, but two Mercedes-Benz vehicles – a 2017 Mercedes-Benz SLC Roadster and a 2017 Mercedes-Benz C300 Cabriolet – were auctioned off for a combined $104,000 at the gala held at the Hilton Americas-Houston.