De Beers has reduced prices for smaller rough diamonds at this week’s sight, with manufacturers saying the adjustments aren’t enough to ease their profitability challenges. The miner cut the price of 3-grainer (0.75-carat) and smaller goods by 4% to 6%, market insiders told Rapaport News Tuesday. In 4- to 6-grainers (1 to 1.5 carats), the price decline was around 4%, they estimated.
Prices of 5- to 10-carat rough increased slightly, though this partly reflected modifications to the assortments, they added. Like-for-like price movements are hard to estimate because changes to the product mix can skew them, the sources cautioned. De Beers declined to comment.