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Diamond index makes recovery

After four weeks of declines, the overall polishedprices index increased last week.

Daily Index levels Level Daily Change
Monday 08/07 119.1 -0.1%
Tuesday 09/07 119.0 -0.1%
Wednesday 10/07 119.1 0.1%
Thursday 11/07 119.3 0.1%
Friday 12/07 119.7 0.3%
Monday 15/07 119.9 0.2%

Weekly Index

The main polishedprices index opened on Monday at 119.5 points, up 0.7% compared to the previous week’s opening. The overall index is 0.9% below its level of this time last year but has gained 0.3% since the start of this year.

Of the benchmark categories the largest gain came from the Fine 1.0 carat range, which added 5.2%

The largest loss came from the Fine 0.3 carat range, which lost 3.0% compared to the previous Monday.

Benchmark groupings PolishedPrices Index

   

Current Levels

   

2019  Low

 

2019

High

   
   

 Index Jan 04=100

Change from week ago

Change from year ago

Index

Date

Index

Date

Year to date change

 

Overall

119.9

0.7%

-0.9%

118.9

04-Jan

121.8

04-Apr

0.3%

                   

1 crt/4gr

Fine

116.9

5.2%

-3.8%

109.4

04-Jul

124.8

10-Apr

3.4%

 

Commercial

115.6

0.6%

-1.9%

112.2

04-Jan

121.8

15-Apr

-0.7%

 

Mixed

113.1

0.7%

16.6%

104.7

01-Apr

114.5

04-Feb

2.0%

                   

0.5 crts / 50 pts

Fine

97.2

3.2%

-6.1%

91.0

03-Jul

103.4

25-Apr

0.7%

 

Commercial

99.2

0.1%

-8.6%

98.4

03-Jul

107.2

07-Jan

-3.1%

 

Mixed

98.0

-0.0%

0.4%

95.8

05-Feb

99.5

22-Feb

-0.1%

                   

0.3 ctrs/ 30 pts

Fine

93.1

-3.0%

-20.9%

89.9

15-May

108.1

29-Jan

-9.5%

 

Commercial

107.6

0.7%

-13.3%

105.7

09-Jul

115.4

07-Jan

-1.3%

 

Mixed

118.1

-0.2%

-5.9%

113.3

14-Mar

120.1

03-Jan

-2.0%


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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