The recovery in diamond prices is leaving out the smallest and lowest-quality gems. For the smallest diamonds, prices are down 15 percent this year, data compiled by Bloomberg show. That compares with an average 7 percent increase for all stones.
The recovery in diamond prices is leaving out the smallest and lowest-quality gems. For the smallest diamonds, prices are down 15 percent this year, data compiled by Bloomberg show. That compares with an average 7 percent increase for all stones.