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Market NewsIndex ReportsDiamond index decline continues

Diamond index decline continues

The overall polishedprices index continued fall over the past week, setting its lowest value since January 2018.

Daily Index levels Level Daily Change
Tuesday 27/08 116.9 0.3%
Wednesday 28/08 117.1 0.1%
Thursday 29/08 116.6 -0.4%
Friday 30/08 116.8 0.2%
Monday 02/09 116.2 -0.5%

Weekly Index

The main polishedprices index opened on Monday at 116.2 points, down 0.6% compared to the previous week’s opening. The overall index is 3.0% below its level of this time last year and has lost 2.8% since the start of this year.

The main decline came from the Fine 0.3 carat range, which fell 7.4% over the week.

The larger Fine categories fared better, however, with the 1.0 carat and 0.5 carat ranges both adding 1.0% 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

116.2

-0.6%

-3.0%

116.2

02-Sep

121.8

04-Apr

-2.8%

                   

1 crt/4gr

Fine

111.1

1.0%

1.2%

109.4

04-Jul

124.8

10-Apr

-1.7%

 

Commercial

111.8

-0.8%

-3.5%

111.3

19-Jul

121.8

15-Apr

-4.0%

 

Mixed

110.2

-1.8%

12.5%

104.7

01-Apr

114.5

04-Feb

-0.6%

                   

0.5 crts / 50 pts

Fine

90.3

1.0%

-12.2%

89.4

27-Aug

103.4

25-Apr

-6.5%

 

Commercial

98.5

-1.0%

-5.8%

98.1

09-Aug

107.2

07-Jan

-3.8%

 

Mixed

97.0

0.3%

-0.7%

95.8

05-Feb

99.5

22-Feb

-1.1%

                   

0.3 ctrs/ 30 pts

Fine

85.8

-7.4%

-24.6%

85.8

02-Sep

108.1

29-Jan

-16.6%

 

Commercial

102.2

-1.6%

-16.2%

102.2

02-Sep

115.4

07-Jan

-6.3%

 

Mixed

116.8

0.0%

-7.6%

113.3

14-Mar

120.1

03-Jan

-3.1%

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.