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Market NewsIndex ReportsDiamond index falls back sharply

Diamond index falls back sharply

The increasing volatility in the diamond markets continued last week, as the overall PolishedPrices index gave up all of last weeks strong gains, falling to its lowest level since last August.

The main index, which tracks all sizes between 0.3 carats and 3 carats, fell 5.5% to 122.0 points, in healthy trading volumes. This is 3.8% below its level of this time last year.

Commercial half carat diamonds, or 0.5 carats, were the weakest of the benchmark sizes, dropping 12.5%.

The only category in positive territory were Mixed 0.3 carat diamonds, which managed a slight gain on the week.

Benchmark groupings PolishedPrices Index.

    Current Levels   2007 Low 2007 High  
    Index Jan 04 = 100

Change from week ago

Change from year ago

Index Date W/E Index Date W/E Year to Date Change
  Overall 122.0

-5.5%

-3.8%

122.0 18-Feb 129.2

11-Feb

-2.7%

                   
1 ct Fine 110.4

-4.8%

-9.3%

110.4 18-Feb 116.5

28-Jan

-0.8%

  Commercial 117.8

-5.6%

-9.1% 117.8 18-Feb 125.5

07-Jan

1.7%

  Mixed 169.9

-2.8%

7.2% 166.2 28-Jan 174.8

11-Feb

3.5%

                   
0.5ct Fine 119.9

-8.2%

-8.3% 110.4 21-Jan 131.6

28-Jan

-0.9%

  Commercial 105.4

-12.5%

-17.0%

105.4 18-Feb 121.8

14-Jan

-10.2%

  Mixed 103.5

-3.6%

3.3%

99.6 04-Feb 108.9

14-Jan

-3.6%

                   
0.3ct Fine 136.1

-5.7%

5.9% 123.3 14-Jan

149.7

07-Jan

-7.3%

  Commercial 125.9

-6.4%

-4.9% 122.4 28-Jan 137.3

07-Jan

-10.3%

  Mixed 119.7

0.4%

6.8%

109.6 21-Jan 119.7

18-Feb

3.5%

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 
Mixed:  The rest down to M/I3  
 

The weightings used in the calculation of these indices are chosen to reflect world production.