Timothée Chalamet’s close relationship with Cartier means he gets access to more than just the hottest catalogue of watches on the planet. The Parisian jeweller has made a habit of creating one-of-a-kind pieces for the actor’s red carpet appearances. Tonight, in London for the premiere of Dune: Part Two, Chalamet wore a bespoke necklace that’s as dazzling as it is imbued with the spirit of Arrakis.

Chalamet’s necklace—or creation, as Cartier describes it—was devised with some creative direction from the actor. The result is a piece of jewellery loaded with so many subtle Easter eggs to Dune that breaking them all down makes you understand how Swifties must feel any time Taylor does…anything. The necklace—which Chalamet paired at the premiere with an equally shimmering custom look from his fashion BFF Haider Ackermann—was designed to be modular, with set pieces that Chalamet can rotate to show off different combinations of the 900 (!) glimmering stones embedded throughout.