Christie’s auction house will next week launch the sale of hundreds of jewels that belonged to Austrian billionaire Heidi Horten, whose German businessman husband made his fortune under the Nazis. Christie’s will offer 700 lots from Horten’s collection, including “unique and exceptional pieces" from 20th-century designers including Cartier, Harry Winston, Bulgari and Van Cleef & Arpels. The whole collection has an estimated value of more than $150 million. The sale could eclipse previous records set by Christie’s in sales of properties that belonged to actress Elizabeth Taylor in 2011 and the “Maharajas and Mughal Magnificence" collection in 2019, both of...