Jewels belonging to an Austrian billionaire whose German husband made his fortune under the Nazis go under the hammer on Wednesday, despite demands by Jewish groups to call the sale off. The Christie's auction house plans to sell the entire collection of 700 jewels, estimated to be worth more than $150 million, by the end of the year. A portion has been available online since last week, while nearly 100 pieces will be sold in person in Geneva on Wednesday and another 150 on Friday. The jewellery, including pieces from 20th-century designers such as Cartier, Bulgari and Van Cleef &...