2018 Global Diamond Industry Primer Paul Zimnisky ...
Dec 18, 2017· Through midDecember 2017, rough diamond prices are up %* yeartodate, while polished prices are down %**. However, despite shrinking manufacturer margins, the midstream segment of the industry still bought worth of diamonds from De Beers this year, including 450M at the final sight which was 7% over the comparable sight last year and 81% over 2015.