Hamptonites chatted and mingled over summery cocktails at a soiree for Kathy and Rick Hilton hosted by Bettina Zilkha at her Southampton home. Absent from the shindig were the Hiltons' daughters. "It" girl Paris missed the chance to flaunt her 15-carat white-diamond engagement ring (she's complained it's weighing heavy on her hand) from Greek shipping heir fiancé, Paris Latsis. Seen roaming the garden party: Somers White and Jonathan Farkas, Leila Heller, Princess Yasmin Aga Khan, Debbie Bancroft, Katharina Otto-Bernstein, Tinsley Mortimer, David Granoff, Nanette Lepore, Patty Raynes, Hilary Geary Ross, Palmer Taipale, Jamee and Peter Gregory, Tory Lampley, and Rebecca Beeson.