The IDEX Online Polished Price Report – September 2018

(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%.

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.

To receive a free copy of the full IDEX Online Diamond Price Report, please email us at prices@idexonline.com.

Rounds

• 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 -2-3%
• 0.70-0.79 cts E / VVS2 -3%, K / VVS1 +3%
• 0.80-0.89 cts F-G / I3 -4%
• 0.90-0.99 cts E / SI1-I2 -1-4%, G / VS1 +3%
• 1.00-1.24 cts L / I1 -3%
• 1.25-1.49 cts E-F / IF -2%, D / VVS2 +1%
• 1.50-1.99 cts H / SI1 -3%, E / I1 +3%
• 2.00-2.99 cts J / VS1-VS2 -3%, L-M / IF-VVS2 +2-3%
• 3 cts J / VVS2-VS1 -2-3%, E-G / IF +3%
• 4 cts I / VS1-VS2 -3%, F / VS1 +3%
• 5 cts F / I1-I3 -2-4%, I / VS1 +3%

Fancy Cuts

• 0.18-0.22 cts No Changes
• 0.23-0.29 cts D-SI2 / -4%
• 0.30-0.39 cts D / IF -3%, F-G / SI2 +3%
• 0.40-0.44 cts D / IF -1%, E / VS1-VS2 +3%
• 0.45-0.49 cts E / SI1 -2%, H / VS1+2%
• 0.50-0.69 cts G / IF -3%, H / VVS1-VVS2 +1-2%
• 0.70-0.79 cts H-I / SI2 -3%, E / SI1-SI2 +2-3%
• 0.80-0.89 cts I / SI1 -3%, J / VS2 +3%
• 0.90-0.99 cts D-F / IF -1-2%, D-G / SI1 +1-3%
• 1.00-1.24 cts J / VVS2 -2%, H-K / IF-VVS1 +1-4%
• 1.25-1.49 cts D-E / VS2 -2-3%, I / VVS1 +3%
• 1.50-1.99 cts N / IF-VS2 -3%, E / VVS2-SI1 +1-3%
• 2 cts G-H / SI1 -2-3%, G-I / VVS2-VS1 +1-3%
• 3 cts E / VVS2 -3%, E-G / SI2 +2%
• 4 cts D / VS1 +3%

• 5 cts D-F / VS1 +3%