If this is your first time registering, please check your inbox for more information about the benefits of your Forbes account and what you can do next! Throughout the mined-diamond supply chain, sales are falling, with rough diamonds sales expected to … [+] decline by 25% and polished diamond sales to be off 10% in 2019, according to Bain & Co. That is the news in the latest Global Diamond Report 2019 from Bain & Company in association with the Antwerp World Diamond Centre. Throughout the mined-diamond supply chain, sales are falling, with rough diamonds sales expected to decline by 25% and polished diamond sales to be off 10% by the end of the year. So far, the jewelry side of the business hasn’t felt what Bain describes as a “diamond industry recession” as sharply. Global diamond jewelry retail sales will decline by about 2% this year, but sales in China, the world’s second largest diamond jewelry market, will drop further by 5%. The only bright spot in diamond jewelry is the branded luxury sector, which is expected to advance in the high-single digits. Overall, luxury diamond jewelry accounts for about 15% of the diamond retail market. As for the future, Bain ...