The fair, Eye of the Collector, will take place in an as yet unnamed location in central London between May 13-15.
It will be held in a historic location allowing for the art on sale to be hung in a “grand domestic setting”.
The pictures and artworks will be from between 30-40 galleries and artists, selected by a curatorial committee and works from established artists will be shown alongside their lesser-known contemporaries.
Vassegh, who previously a specialist at Sotheby’s, said her event will be for “collectors, curators, art professionals, interior designers, architects and art insiders”.
Entry will be by invitation only between May 13-15 and open to the public on May 16.
Vassegh added: “When you enter a collector’s home, rarely do you see works from just one period on show. Eye of the Collector is a next generation art event, created for collectors and patrons. It will provide a opportunity for showcasing works across the artistic spectrum.”