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Polished index fails to hold on to gains

The main polishedprices index failed to hold on to most of the gains it made in the first week of the year.

Daily Index levels

Level

Daily Change

Monday  08/01

117.2

0.3%

Tuesday  09/01

116.1

-1.0%

Wednesday 10/01

116.1

0.0%

Thursday 11/01

116.1

0.0%

Friday 12/01

115.9

-0.2%

Monday  15/01

116.4

0.4%

Weekly Index

The main polishedprices index opened on Monday at 116.4 points, down 0.7% from the previous Monday. The overall index is 0.6% below its level for this time last year, but has gained 0.4% so far this year.

Amongst the benchmark categories, only the larger Mixed ranges were in positive territory with Mixed 0.5 carats recording the largest gain of the week, adding 1.2%.

The largest losses over the last seven days came from better quality 0.3 carats with Fine and Commercial losing 2.4% and 4.6% respectively.  

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

116.4

-0.7%

-0.6%

115.9

12-Jan

117.2

08-Jan

0.4%

                   

1 crt/4gr

Fine

114.3

-1.4%

2.7%

113.4

12-Jan

116.3

11-Jan

0.7%

 

Commercial

110.0

-1.8%

0.8%

110.0

15-Jan

114.2

04-Jan

-1.1%

 

Mixed

97.2

0.4%

2.5%

96.6

03-Jan

97.6

09-Jan

1.4%

                   

0.5 crts / 50 pts

Fine

96.4

-0.1%

-11.8%

94.2

09-Jan

98.1

03-Jan

0.8%

 

Commercial

102.5

-0.3%

-2.2%

99.6

02-Jan

102.8

08-Jan

4.5%

 

Mixed

98.4

1.2%

-0.8%

96.2

02-Jan

98.4

15-Jan

1.9%

                   

0.3 ctrs/ 30 pts

Fine

101.3

-2.4%

0.9%

99.0

11-Jan

103.8

08-Jan

2.9%

 

Commercial

110.4

-4.6%

3.6%

110.3

04-Jan

115.7

08-Jan

1.3%

 

Mixed

122.4

-0.2%

2.6%

122.0

12-Jan

122.6

08-Jan

-0.0%

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.