The overall index was highly volatile over the past week, with high volumes of trades being reported to PolishedPrices. However, the trend remains upward.
Daily Index levels
Level
Daily Change
Monday 08/02
114.9
-0.2%
Tuesday 09/02
122.1
6.3%
Wednesday 10/02
118.6
-2.8%
Thursday 11/02
118.8
0.2%
Friday 12/02
116.1
-2.3%
Monday 15/02
118.4
2.0 %
Weekly Index
The main PolishedPrices index rose 3.1% during the week, opening at 118.4 points on Monday. The index is currently 4.5% higher than a year ago, and has risen 11.7% from last April’s low. It is up 3.7% on the year to date.
Nearly all the benchmark categories posted gains, with only Mixed 1.0 and 0.3 carat diamonds showing losses.
Commercial 0.5 carats showed the largest gain, recovering from last week’s loss and adding 7.9%
Benchmark groupings PolishedPrices Index.
Current Levels
2010 Low
2010 High
Index
Jan 04
=100
Change from week ago
Change from
year ago
Date
W/E
Year to date change
Overall
3.1%
4.5%
113.1
05-Jan
08-Feb
3.7%
1 ct
Fine
126.5
6.1%
15.2%
115.7
20-Jan
138.3
6.2%
Commercial
118.7
0.7%
10.4%
111.8
06-Jan
129.4
1.9%
Mixed
146.9
-4.1%
5.3%
135.9
159.8
26-Jan
5.5%
0.5 ct
117.4
5.6%
5.1%
106.4
125.7
7.4%
103.8
7.9%
10.9%
96.2
07-Feb
107.3
5.7%
94.2
6.0%
-1.2%
88.9
94.5
21-Jan
2.5%
0.3 ct
122.8
7.5%
17-Jan
135.4
116.6
0.8%
3.3%
110.5
119.2
11-Jan
2.1%
102.8
-0.4%
-3.3%
107.0
-3.2%
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.