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Index sinks to lowest level since 2011

In a dramatic finish to the week, the overall polishedprices index sank to lowest level since January 2011.

Daily Index levels Level Daily Change
Monday 26/01 132.4 1.1%
Tuesday 27/01 135.1 2.0%
Wednesday 28/01 134.6 -0.4%
Thursday 29/01 134.3 -0.2%
Friday 30/01 133.3 -0.7%
Monday 02/02 129.7 -2.7%

Weekly Index

The main PolishedPrices index opened 2.0% lower than the prior week on Monday at 129.7 points. The overall index is currently 10.6% lower than this time last year, and has lost 4.9% since the start of 2015.

All 0.3 carat benchmark ranges finished the week at 2015 lows in volatile trading.

Commercial 0.3 carats ended the week down 4.7%, after recording a 2015 high earlier in the week.

Mixed 0.3 carats diamonds also recorded considerable losses, dropping 5.2% over the previous week.

The poorest performance came from Fine 0.3 carats, which plunged 8.5% on the prior week.

Fine 0.5 carat stones also hit a 2015 high during the past week, but fell back to finish the week 6.0% lower than the prior week.

Commercial 0.5 carats fared no better, ending the week down 5.8%. 

Mixed one carat stones were the only benchmark category in positive territory, adding 1.3%, after a poor performance during the previous week.

Benchmark groupings PolishedPrices Index

    Current Levels     2015 Low   2015 High    
     Index Jan 04=100 Change from week ago Change from year ago Index Date Index Date  Year to date change
  Overall 129.7 -2.0% -10.6% 129.7 01-Feb 136.4 08-Jan -4.9%
                   
1 crt/4gr Fine 122.6 -4.0% -22.0% 119.9 15-Jan 134.2 04-Jan 0.5%
  Commercial 128.9 -1.6% -16.1% 125.2 20-Jan 145.3 08-Jan -1.7%
  Mixed 164.3 1.3% -8.8% 162.2 25-Jan 180.1 08-Jan -5.1%
                   
0.5 crts / 50 pts Fine 119.7 -6.0% -13.8% 117.9 22-Jan 138.6 26-Jan -12.8%
  Commercial 124.1 -5.8% -7.2% 122.7 13-Jan 138.2 01-Jan -11.1%
  Mixed 105.3 -1.5% -7.1% 105.3 01-Feb 113.1 01-Jan -6.9%
                   
0.3 ctrs/ 30 pts Fine 111.1 -8.5% -15.5% 111.1 01-Feb 139.4 19-Jan -12.5%
  Commercial 142.4 -4.7% -8.2% 142.4 01-Feb 166.5 26-Jan -10.7%
  Mixed 112.9 -5.2% -11.2% 112.9 01-Feb 126.2 12-Jan -10.4%

The definitions of our groupings are:

Fine:            Goods better than I colour and VS2 and above

Commercial:  K SI3 and above, excluding the Fine category, and

Mixed:                   The rest down to M I3

The weightings used in the calculation of these indices are chosen to reflect world production. Please contact us if you would like to see details of the weightings used, or would like to see the information grouped differently.

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