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Diamond index decline continues

The overall polishedprices diamond index continued to drift lower throughout last week.

Daily Index levels

Level

Daily Change

Monday 08/10

121.2

0.3%

Tuesday  09/10

120.9

-0.3%

Wednesday 10/10

120.5

-0.3%

Thursday 11/10

119.5

-0.8%

Friday 12/10

119.5

0.0%

Monday 15/10

120.0

0.5%

Weekly Index

The main polishedprices index opened on Monday at 120.0 points, down 1.0% compared to the previous week. The overall index is 4.1% above its level of this time last year, and up 3.5% since the start of the year.

The main weakness came from the Fine larger sizes, with 1.0 carats falling 4.3% and 0.5 carats 3.0%, compared to the previous Monday.

The strongest performer of the benchmark categories was the Mixed 1.0 carat range which added 1.3% over the week.

Benchmark  groupings  PolishedPrices  Index

   

Current Levels

   

2018 Low

 

2018 High

   
   

 Index Jan 04=100

Change from week ago

Change from year ago

Index

Date

Index

Date

 Year to date change

 

Overall

120.0

-1.0%

4.1%

115.9

12-Jan

121.5

02-Jul

3.5%

                   

1 crt/4gr

Fine

116.6

-4.3%

8.3%

107.7

30-Aug

126.8

02-Jul

2.7%

 

Commercial

113.1

-3.0%

1.9%

109.5

02-Mar

120.4

20-Sep

1.8%

 

Mixed

100.9

1.3%

5.8%

94.3

05-Feb

101.0

11-Oct

5.3%

                   

0.5 crts / 50 pts

Fine

104.3

-3.6%

14.5%

92.8

02-Aug

108.2

08-Oct

9.0%

 

Commercial

108.6

-0.5%

10.1%

99.6

02-Jan

112.8

01-Oct

10.7%

 

Mixed

94.8

0.2%

-2.6%

94.6

08-Oct

100.5

26-Apr

-1.8%

                   

0.3 ctrs/ 30 pts

Fine

111.0

0.6%

11.5%

98.8

09-Feb

119.4

27-Sep

12.8%

 

Commercial

123.6

1.2%

9.7%

110.3

04-Jan

127.8

25-Sep

13.4%

 

Mixed

125.3

0.9%

0.8%

122.0

12-Jan

127.0

24-Sep

2.4%

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.