DATE: May 3 – 15, 2023

LOCATION: The Four Seasons Hotel des Bergues and Online

In May 2023, Christie’s will be presenting the world’s largest and most valuable jewelry collection to ever come to auction. The event will be unparalleled… historic… bigger than the Elizabeth Taylor Collection auction in 2011 and the Maharajas & Mughal Magnificence auction in 2019.

The auction is called: The World of Heidi Horten. And it will be hosted in 4 parts.

Christie’s will host two live auctions at The Four Seasons Hotel des Bergues in Geneva, Switzerland on May 10 and May 12. These auctions will feature 400 pieces from the 700 jewel collection.

Christie’s will also host two online sales. The first will run from May 3 to 15. The second will run in November. This final sale will offer the remaining jewels from the collection.


The World of Heidi Horten auction will present 700 jewels by top jewelry houses like Bovin, Bulgari, Cartier, Köchert, Tiffany, Harry Winston, and Van Cleef & Arpels. It will include historical, contemporary, and iconic jewels.

In addition, this will be one of the largest Bulgari auctions. An estimated 100+ pieces by Bulgari, spanning 30 years, will be offered.

Some highlights from the auction are:

– The Briolette of India Diamond Necklace by Harry Winston, a 90 carat D-colour diamond necklace, cut by Atanik Eknayan in France in 1908-9

– The Sunrise Ruby and Diamond ring by Cartier, a 25 carats, ‘pigeon blood’ red in color, rare gem worth an est. $15+ million USD

– A three-strand natural pearl necklace with a 11 carats pink diamond clasp by Harry Winston, worth an est. $7+ million USD

– A diamond, sapphire and emerald necklace by Bulgari, worth an est. $1+ million USD

– A natural black pearl necklace, worth an est. $1.9+ million USD

– The Great Mughal Emerald Pendant Necklace by Harry Winston, worth an est. $500,000+ USD

What makes this collection particularly remarkable is the breadth and quality of the gemstones represented. You’ll find everything from costume jewellery and one-of-a-kind haute joaillerie pieces to historic jewels with exceptional provenance.” – Max Fawcett, Christie’s