After an initial meeting in St. Barth’s in 1983, it wasn’t long before Billy Joel and Christie Brinkley started dating. That ...

Kate Hudson sure got a rock from her star Chris Robinson — her Asscher-cut diamond in an Art Deco mounting by Neil Lane weighs in at a whopping five carats. Rebecca Romijn-Stamos's best-kept secret?

Behind it is Laurent Asscher, a Belgian businessman and passionate collector who, in little more than a decade, accumulated one of the most prestigious collections of contemporary American and ...