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Polished index opens slightly up

The overall PolishedPrices index opened slightly up on Monday, after a volatile session in the first half of the week.

Daily Index levels

Level

Daily Change

Monday 29/09

142.6

-0.8%

Tuesday 30/09

143.3

0.5%

Wednesday 01/10

144.2

0.6%

Thursday 02/10

143.6

-0.5%

Friday 03/10

143.4

-0.1%

Monday 06/10

142.7

-0.5%

Weekly Index

The main PolishedPrices index opened 0.1% higher than the prior week on Monday at 142.7 points. The overall index is currently 0.6% above its level this time last year, and has gained 1.2% since the start of 2014.

The best performance was recorded by Mixed quality one carats, which gained 3.5% over the previous week.

Commercial one carat and 0.5 carat diamonds also strengthened, finishing up 2.0% and 1.7% on the prior week.

However, 0.3 carats weakened across the board. Mixed 0.3 carats fell 1.1% while Commercial was down 0.8%. Fine quality 0.3 carats ended the week 0.9% lower.

Benchmark groupings PolishedPrices Index

   

Current Levels

   

2014 Low

 

2014 High

   
   

 Index Jan 04=100

Change from week ago

Change from year ago

Index

Date

Index

Date

 Year to date change

 

Overall

142.7

0.1%

0.6%

140.9

01-Jan

152.3

21-Apr

1.2%

                   

1 crt / 4gr

Fine

136.2

-0.6%

-3.4%

126.9

27-Aug

167.7

12-May

-3.8%

 

Commercial

138.5

2.0%

-6.5%

132.6

26-Feb

164.7

23-Jan

-3.0%

 

Mixed

180.6

3.5%

-0.8%

169.7

27-Mar

194.1

06-Apr

4.5%

                   

0.5 crts / 50 pts

Fine

143.3

1.1%

4.7%

130.9

13-Jan

154.9

24-Mar

7.4%

 

Commercial

142.1

1.7%

7.6%

128.7

16-Jan

155.5

31-Mar

6.3%

 

Mixed

113.2

1.3%

-1.8%

107.4

13-May

120.6

15-Apr

-1.5%

                   

0.3 ctrs/ 30 pts

Fine

138.6

-0.9%

11.2%

131.4

30-Jan

165.5

14-Apr

5.0%

 

Commercial

169.0

-0.8%

10.1%

147.5

28-Apr

186.4

07-Jul

4.9%

 

Mixed

129.8

-1.1%

1.4%

123.2

01-Sep

136.6

27-Jul

1.3%

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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