Christie’s Appoints Kimberley Miller as Global Managing Director For Luxury

Kimberley Miller joined Christie’s in 2010 within the wine department and has since distinguished herself through an international career, leading luxury activities in the Americas and achieving significant commercial success heading the jewelry, watches, wine, and leather goods divisions. She now oversees all Global Luxury activities, covering live sales, online auctions, and private sales.

This appointment comes after an exceptional year for Christie’s luxury division. Last November in Geneva, the Mellon Blue, an extraordinary blue diamond regarded as a museum-quality high jewelry piece, sold for 20.5 million Swiss francs ($25.6 million), becoming the most expensive jewelry lot sold at auction in 2025. This sale contributed to a 24% year-on-year increase during the auction week. Overall, the luxury category generated $795 million, up 17% compared to the previous year.

Kimberley Miller’s appointment takes place at a time when traditional luxury players—auction houses, haute couture brands, and digital platforms—are revising their strategies to attract younger, more connected customers who are increasingly attentive to second-hand products.

The global resale market for luxury goods is experiencing sustained growth, becoming a major development avenue for the sector. According to a 2025 study by Boston Consulting Group and Vestiaire Collective, luxury resale is currently growing three times faster than the new market, with an estimated annual growth rate of +10%. The study also shows that 28% of the clothing worn by respondents is second-hand, a figure rising to 40% for bags.

This acceleration in the resale market reflects a broader trend driven by the current uncertain economic context. Faced with rising prices for new items and pressure on purchasing power, many buyers are turning to the second-hand market. Platforms are expanding their offerings of certified products and services (authentication, guarantees), reinforcing consumer trust.

Recent data confirm that the global luxury market continues to reinvent itself: according to Bain & Company, it reached approximately €1,440 billion in 2025, marking a stabilization phase after several years of growth. Buyers are changing their habits, often favoring less conventional channels, with resale becoming an integral part. Kimberley Miller therefore assumes her role at a pivotal moment for the luxury market, where resale is emerging not merely as a side segment but as a true growth driver.