The IDEX Online Polished Price Report - September 2019

(IDEX Online) - Overall, prices in September were fairly stable. In rounds, the important 1.00-1.25 carat group saw a few changes but was mostly unchanged with prices falling for F-G / IF and rising for D-E / SI2. Likewise, the 2.00-2.99-carat category saw a few changes, which were mostly positive. The biggest movement came in the 3.00-3.99 category, which saw falling prices for the better colors and middle qualities and an across the board price increase of 2-6% for F-N colors in the lower qualities.

Fancy stones between 0.30 to 0.39 carats saw some increases in the higher colors. Prices were shifting for the 0.70-0.79-carat category, with both gains and losses. In the 1.00-1.24 category, there were increases in the J-K, SI2 and better ranges. Larger goods, especially those in the 2.00-3.99-carat categories saw some price drops with both increases and declines in the 5.00-5.99 range. 

Want to get the full IDEX Online Diamond Price Report? Email prices@idexonline.com to get a free copy of the report direct to your inbox each month.

Rounds

• 0.18-0.22 ct. IF / I +3%

• 0.23-0.29 ct. K / VVS1-SI1 -4-5.5%

• 0.30-0.39 ct. G / VVS2-VS1 -2.5%, J / VVS2 and VS2 -3%, L / IF-VVS1 +3.5%

• 0.40-0.44 ct. K/ SI2 -3.5%

• 0.45-0.49 ct. D / VS2-SI2 +2-4%, E / IF and VVS2 -2.5-3%

• 0.50-0.69 ct. K / VS2 +3%

• 0.70-0.79 ct. D-E / SI3 -1.5-3%, H-I / VVS1 +3%

• 0.80-0.89 ct. G-H / VVS2 -1-3%, I / IF and SI3 -3-4%

• 0.90-0.99 ct. K / VVS1-VVS2 -3%

• 1.00-1.24 ct.  D-E / SI2 +3%, IF / F-G -3%

• 1.25-1.49 ct. D / VVS1 -3.0%

• 1.50-1.99 ct. D / SI1 -1%

• 2.00-2.99 ct. G / IF-VVS1 +3%, F-H / VS1 +3%

• 3.00-3.99 ct. F-N / I1-I3 +2-6%, E-I / VVS2-VS2 -2-3%

• 4.00-4.99 ct. D,I and K / VS1 +3%

• 5.00-5.99 ct. G and J / VVS2-VS1 +3% and L-M / I1 -2% 

Fancy Cuts

• 0.18-0.22 ct. D / VS2 +4% and D / SI1 -5%

• 0.23-0.29 ct. No changes

• 0.30-0.39 ct. D / VS2-SI1 +2.5-3% and H / VS1 and SI2 +3-4% 

• 0.40-0.44 ct. D / IF and VS1 -1-3%

• 0.45-0.49 ct. No changes

• 0.50-0.69 ct. J / VS1-VS2 -2%

• 0.70-0.79 ct. A number of changes including D-F / VS2-SI1 -2-3% and I-K / VVS2 +2-3%

• 0.80-0.89 ct. Some changes in the better colors and qualities including G / IF-VVS1 and VS2 +1-4% and I / VVS1-VS1 -1-3%

• 0.90-0.99 ct. G / VVS2-VS1 and SI2 -2%

• 1.00-1.24 ct. I / IF-VVS1 -3-4%, J-K / VVS2-SI2 +2-3% and F-H / SI2 +4%

• 1.25-1.49 ct. E / IF and VS1 +1-3%

• 1.50-1.99 ct. G / IF-VVS2 +3%

• 2.00-2.99 ct. F / IF -6%, D, H-I / VVS2 -2-3%

• 3.00-3.99 ct. H / VVS2-VS1 -3% and K-L / SI2 -2.5-3%

  4.00-4.99 ct. E-F / IF +1-3%
  

• 5.00-5.99 ct. F / VS1-I2 +1-3% and I / VS2-SI2 -2.3%