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Diamond index falls sharply

Polished diamond prices fell sharply throughout the past week, with trading volumes relatively high.

Daily Index levels

Level

Daily Change

Monday 07/09

114.8

0.1%

Tuesday 08/09

113.9

-0.8%

Wednesday 09/09

112.1

-1.5%

Thursday 10/09

109.6

-2.3%

Friday 11/09

110.1

0.5%

Monday 14/09

109.7

-0.4%


Weekly Index
The main PolishedPrices index fell 4.5% over the week, opening at 109.7 points on Monday. The index is currently 20.1% lower than this time last year, and has fallen 8.2% since the start of the year. It is, however, 3.4% above the low reached in April.

There were losses across all the benchmark categories, with

Fine 0.3 carat diamonds particularly hardly hit, losing their strong gains  from last week,  posting a new low for the year.

Commercial 0.3 carats also recorded their lowest value since January 2004.

Benchmark groupings PolishedPrices Index.

   

Current Levels

 

2009 Low

2009 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

109.7

-4.5%

-20.1%

106.0

19-Apr

123.3

11-Jan

-8.2%

   











 

1 ct

Fine

111.5

-2.7%

-29.1%

98.8

12-Feb

128.4

03-Feb

-0.4%

 

Commercial

109.5

-5.3%

-18.8%

95.9

21-Apr

128.5

11-Jan

-8.5%

 

Mixed

148.6

-1.7%

-13.0%

122.8

30-Apr

165.5

07-Jan

0.9%

   







 

 

0.5 ct

Fine

106.5

-5.2%

-19.2%

102.1

12-Apr

127.6

22-Jun

-7.6%

 

Commercial

93.0

-5.1%

-20.5%

91.0

31-May

113.6

16-Feb

-12.0%

 

Mixed

92.2

-2.9%

-18.3%

86.4

14-May

98.2

05-Jan

-6.1%

   







 

 

0.3 ct

Fine

105.9

-17.5%

-23.2%

105.9

13-Sep

132.7

08-Mar

-11.3%

 

Commercial

105.6

-3.7%

-21.3%

105.6

13-Sep

123.2

12-Jan

-10.9%

 

Mixed

104.8

-0.4%

-7.4%

100.4

03-May

109.2

16-Mar

-0.3%


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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