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Diamond index at lowest level since December 2017

The overall polishedprices index fell to its lowest level since December 2017.

Daily Index levels Level Daily Change
Monday 09/09 116.3 -0.2%
Tuesday 10/09 116.6 0.2%
Wednesday 11/09 116.4 -0.1%
Thursday 12/09 116.1 -0.3%
Friday 13/09 116.1 0.1%
Monday 16/09 116.0 -0.1%

Weekly Index

The main polishedprices index opened on Monday at 116.0 points, down 0.3% compared with the previous week’s opening. The overall index is 3.5% below its level of this time last year and has lost 3.00% since the start of this year.

The biggest decline came from the Commercial 0.3 carat range, which slipped 3.6% over the week.

The largest gain came from the Fine 0.3 carat grouping, which added 2.4% 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

116.0

-0.3%

-3.5%

116.0

16-Sep

121.8

04-Apr

-3.0%

                   

1 crt/4gr

Fine

108.7

0.6%

-7.3%

107.9

06-Sep

124.8

10-Apr

-3.8%

 

Commercial

112.7

-0.4%

-6.3%

111.3

19-Jul

121.8

15-Apr

-3.2%

 

Mixed

109.7

0.3%

12.2%

104.7

01-Apr

114.5

04-Feb

-1.0%

                   

0.5 crts / 50 pts

Fine

90.3

1.7%

-9.6%

88.4

12-Sep

103.4

25-Apr

-6.5%

 

Commercial

99.6

1.0%

-2.5%

98.1

09-Aug

107.2

07-Jan

-2.7%

 

Mixed

96.3

-0.0%

-1.4%

95.8

05-Feb

99.5

22-Feb

-1.9%

                   

0.3 ctrs/ 30 pts

Fine

89.2

2.4%

-20.4%

84.6

12-Sep

108.1

29-Jan

-13.3%

 

Commercial

98.0

-3.6%

-19.2%

98.0

16-Sep

115.4

07-Jan

-10.1%

 

Mixed

116.2

-0.4%

-8.1%

113.3

14-Mar

120.1

03-Jan

-3.6%

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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