According to the most recent polished diamond index, published by polishedprices, the overall polishedprices index “consolidated last weeks gains and pushed on to reach its highest level since September 2016”. However, the index still remains 29.8% below its peak of August 2011.
On Monday, October 22, the polishedprices index stood at 121.5. One week later, on Monday 29, the polishedprices index stood at 121.6 – up 0.1% week-over-week. The overall index is 5.9% above its level of this time last year, and up 4.9% since the start of the year.
The strongest categories this past week came from the lower quality 1.0 carat ranges with Commercial and Mixed gaining 3.0% and 3.2% respectively. The weakest category was the Fine 0.5 carat range, which fell 4.2% week-over-week.






