October 01, 18 by Albert Robinson

(IDEX Online News) – There were noticeably fewer changes in round diamonds in September, with the Jewish holidays last month having an effect. There were increases in 2.00-2.99 carat stones in K-M, IF-VVS2 of 2-3%, and in diamonds of 3.00-3.99 carats, E-G, IF, of 3%.<?xml:namespace prefix = "o" ns = "urn:schemas-microsoft-com:office:office" /?>


There were notable decreases in diamonds of 0.50-0.69 carats in I-K, IF, of 2-3%, and in several categories of 0.90-0.99 carat stones, E, SI1-I2, of 1-4%, and in 5.00-5.99 carat diamonds of 2-4% in F, I1-I3.


Fancy diamonds also saw relatively few changes. There were increases in the 0.30-0.39 carat category, F-G, SI2, of 3%, of 2-3% in G-H, VVS2-VS2, in 0.50-0.69 carat diamonds, of 1-3% in the 0.90-0.99-carat range, D-G, SI1, of 2-4% in the 1.00-1.24 carat range, H-K, IF-VVS1, of 2-3% in the 1.50-1.99 carat range, E-F, VVS2-VS2, of 2-3% in the 2.00-2.99 carat range, G-I, VVS2-VS1.


Meanwhile, there were decreases of 1-2% in 0.90-0.99 carat stones, D-F, IF.


The following are some of the changes in this week's IDEX Online Diamond Price Report.


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  • 0.18-0.22 cts E / SI2 +4%
  • 0.23-0.29 cts D-E / I1 -5%
  • 0.30-0.39 cts No changes
  • 0.40-0.44 cts L / VS2-SI1 -3%, K / VS2 +3%
  • 0.45-0.49 cts E / IF 2%
  • 0.50-0.69 cts I-K / IF

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