De Beers Group will put more than $140 million into its marketing efforts this year—its biggest spend in marketing since 2008, according to De Beers Group. The investment will be focused on drumming up consumer demand for diamond jewelry, with the biggest allocations targeting the U.S., China, and India. The majority of investment will support De Beers’ proprietary jewelry brands, Forevermark and De Beers Diamond Jewellers.