Eugenie Niarchos in Halston and Demi Moore

Eugenie Niarchos blends the old with the new as adeptly as Paola Russo mixes fashion, art and Hollywood. Thus it makes sense that the two united to host cocktails and dinner on Friday night for guests such as Demi Moore, Scout Willis, Pixie Lott, Rebecca Dayan, Olivier Martinez, PC Valmorbida, Vito Schnabel, Greg Chait, Serge Azria and Eric Buterbaugh.

Scout Willis

Scout Willis  Kolasinski/BFA/REX/Shutterstock

At Just One Eye, Russo’s boutique housed in Howard Hughes’ former headquarters in West Hollywood, Calif., Niarchos stood as the guest of honor in a white slinky column that was designed decades ago by Halston. Her fascination with science fiction helped propel her away from the Seventies to the future.

“I paired it in my own way,” she said of her dress, which was slit to reveal an angular slice of her clavicle. “I don’t have Halston makeup or Halston hair. That’s what I do with my jewelry — I get inspired by the old and add the new.”

Case in point: The hoop earrings from her label, called Venyx, can double as ninja weapons. “The traditional hoops would be hoops without a point,” she said. Science fiction inspired the $9,675 intarsia stone that fused malachite and other minerals in a rectangular pendant hanging delicately around her neck. “I love futuristic themes. I love the costumes. I love the mysterious elements of the future.”

On the subject of elements, her fourth collection is titled Elementa, referencing the four elements in nature — earth, fire, water and air. The jewelry made its premiere that night at Just One Eye in creative displays, which integrated colorful Lucite, water, volcanic soil and air, surrounded by provocative works from Takashi Murakami and other artists.

The futuristic fashion extended to the waiters’ uniforms. The men’s chests were covered in neon Lucite breastplates that matched the glowing glasses filled with pear sage mules, pomegranate lemongrass gimlets and rosemary jalapeño margaritas.

In the new year, Niarchos plans to continue her exploration of nature and futurism. The London-based designer foresees a road trip to a gem fair in Arizona from Los Angeles. “I want to stop in Joshua Tree,” she said, before leading her guests to the rooftop to dine below the moons — the actual sliver of one and a pair of giant balloons that wouldn’t be out of place in a science fiction movie.

Venyx dinner at Just One Eye

The rooftop dinner celebrating Eugenie Niarchos’ Venyx Elementa collection at Just One Eye.  Lauren/WWD/REX/Shutterstock