Black, Elite and Proud; Catering to 'a Certain Class,' With No Apologies By NINA SIEGAL Published: November 14, 2000 They sat in pumpkin-colored leather chairs over low tables sipping apple martinis, pale green with slivers of Granny Smith at the top. They said they did not come to Aubette, a swank bar with auburn lighting, for intimacy. But as they spoke, their eyes discreetly scanned the room. The crowd was young, black, college educated and upwardly mobile. They were hip, yet decidedly not hip-hop. A conversation with anyone in the room could have started at the Ivy League, turned to philosophy or the stock market and ended with a date or a business deal. At least that was the hope of the young entrepreneurs who created Black Diamonds Entertainment, the promotional company that organized the event. Black Diamonds parties, like the weekly after-work mixer at Aubette, on East 27th Street, are designed for th...