Thomas Biesheuvel

A customer tries on a diamond ring inside a Lukfook Jewellery store, operated by Luk Fook Holdings International Ltd., in Macau, China, on Tuesday, Aug. 26, 2014. Macau is scheduled to release gross domestic product (GDP) figures on Aug. 29. Photographer: Brent Lewin/Bloomberg

iPad generation spurns diamonds

Diamond-mine owners like De Beers have been unable to prevent prices from dropping below where they were a decade ago, a sign the industry is...