Anna Anisimova, age 21, is the daughter of the Russian metals businessman Vassily Anisimov. She is worth a reported $2 billion. She’s known for spending loads of cash on real estate, recently dropping $23 million on Diane Von Furstenberg’s downtown Manhattan property, giving $15 million on a place in the new Time Warner Center, and spending $550,000 to rent a place in the Hamptons for the summer.