Sunrise Ruby and Diamond ring of 25 carats by Cartier and a 90 carat Briolette of India Diamond Necklace by Harry Winston, are seen during a preview of the 700-piece jewellery collection of the late Austrian billionaire Heidi Horten at Christie's before the auction sale in Geneva, Switzerland, May 8, 2023. REUTERS/Denis Balibouse Photo: DENIS BALIBOUSE/REUTERS
The 90 carat Briolette of India Diamond Necklace by Harry Winston, is seen during a preview of the 700-piece jewellery collection of the late Austrian billionaire Heidi Horten at Christie's before the auction sale in Geneva, Switzerland, May 8, 2023. REUTERS/Denis Balibouse Photo: DENIS BALIBOUSE/REUTERS
The Comet brooch by Bulgari is seen during a preview of the 700-piece jewellery collection of the late Austrian billionaire Heidi Horten at Christie’s before the auction sale in Geneva, Switzerland, May 8, 2023. REUTERS/Denis Balibouse Photo: DENIS BALIBOUSE/REUTERS
A Three Strand Natural Pearl Necklace by Harry Winston is seen during a preview of the 700-piece jewellery collection of the late Austrian billionaire Heidi Horten at Christie’s before the auction sale in Geneva, Switzerland, May 8, 2023. REUTERS/Denis Balibouse Photo: DENIS BALIBOUSE/REUTERS
The 90 carat Briolette of India Diamond Necklace by Harry Winston, is seen during a preview of the 700-piece jewellery collection of the late Austrian billionaire Heidi Horten at Christie's before the auction sale in Geneva, Switzerland, May 8, 2023. REUTERS/Denis Balibouse Photo: DENIS BALIBOUSE/REUTERS
A Three Strand Natural Pearl Necklace by Harry Winston is seen during a preview of the 700-piece jewellery collection of the late Austrian billionaire Heidi Horten at Christie’s before the auction sale in Geneva, Switzerland, May 8, 2023. REUTERS/Denis Balibouse Photo: DENIS BALIBOUSE/REUTERS
