The IDEX Online Polished Price Report - August 2019

As usual, during the summer months in the northern hemisphere, in August, price developments in rounds were few and mixed. In the 0.30-0.39-carat category, stones in high colors and commercial clarities saw some prices drop of up to 3.5 percent, but the next two categories, up to half a carat, saw a few price rises, in the commercial color and clarity ranges. In the categories from half a carat up to 0.99 carat, changes were sporadic.

In the important and indicative category of one carat, changes were minimal and minor. Two caraters and up, including the 4.00-4.99-carat category, showed encouraging recovery. In the 5.00-5.99 carat group, prices of lower colors and clarities lost some sparkle.

Like in previous months, in fancy shape diamonds, prices in sizes under half a carat remained stable, with very few changes. Price trends for goods of 0.50 to 1.00 carats were with quite a few rises in commercial and better colors and clarities, but some price drops noted mostly in lower colors.

In step with the season, in the categories above one carat, changes were mixed and sporadic, mostly price corrections to developments of previous months.

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 ct. F / SI2 +4.5%
• 0.23-0.29 ct. no changes
• 0.30-0.39 ct. D / VS1 +2%, D / VS2-SI2 -2-2.5%, F-J / SI1 -2.5%-3.5%
• 0.40-0.44 ct. D / VVS2 +1.5%, G / SI2 +2%, I / IF -2.5%
• 0.45-0.49 ct. D / VS2-SI2 -2-3.5%, G / VS2-SI1 +2-4%, I-J / I1-I2 +4%
• 0.50-0.69 ct. F-G / VS2-SI1 -3-3.5%, H-I / VVS2 -1.5-4%
• 0.70-0.79 ct. D / SI2 -2.5%, G / VS1 --3%, I / VVS1 -3.5%
• 0.80-0.89 ct. D / SI2 +3.5%, H / IF +2.5%
• 0.90-0.99 ct. H / VVS1 -3%
• 1.00-1.24 ct. F-G / IF +3%, D-F / SI2 -3%
• 1.25-1.49 ct. D-E / VVS1-VVS2 +3-3.5%
• 1.50-1.99 ct. D / SI1 -1.0%, D / SI2 +3.5%, G / VVS2 +2.5%
• 2.00-2.99 ct. H / VVS1-VVS2 +3-3.5%, L-N / VS1 +2-3.5%
• 3.00-3.99 ct. F-G / IF +2-3%, H / VS2 +3%, L-M / VS2 2-3.5%
• 4.00-4.99 ct. F-K / VS2-SI2 +2.5-3.5%
• 5.00-5.99 ct. G / VVS2-VS1 -3%, L-N / SI1 -3-3.5%

Fancy Cuts

• 0.18-0.22 ct. D / VS2 -4%, D / SI1 +5.0%
• 0.23-0.29 ct. no changes
• 0.30-0.39 ct. D / IF -5%, G / IF- -2%, G / VS2- -3%, I / VVS1 - -3%
• 0.40-0.44 ct. E-F / IF -2.5%
• 0.45-0.49 ct. G / VS2 no changes
• 0.50-0.69 ct., I-J / VVS2-VS2 +1.5-2%, K / VVS2-VS1 -2.5%
• 0.70-0.79 ct. E-F/ VVS2-VS2 +2-3%, I-K / VVS2-VS1 -2.5-3.5%, G-L / SI2 +3-4%
• 0.80-0.89 ct. D / IF -3%, G / SI1-SI2 +3%
• 0.90-0.99 ct. F / VS1-SI1 -3-3.5%, E-G / SI3 +2.5-3.5%, H-I / VVS1 +3.5%, K-L / IF -3-3.5%
• 1.00-1.24 ct. H-I / IF-VS2 +3-4%, F-H / SI2 -3-4%
• 1.25-1.49 ct. D-E / SI2 +1.5-3%, E / IF +3%, H / VVS1-3%
• 1.50-1.99 ct. F / SI1 +3%, F / SI2 -2.5%, -K / VS2 +2%
• 2.00-2.99 ct.  D / VVS2 +3%, E / VS2 -3%,
• 3.00-3.99 ct. E / IF -3%, K / SI2 +3%
• 4.00-4.99 ct. H / VS2 -3%, J / VS2 +3%
• 5.00-5.99 ct. E-F / VS1-VS2 -3%, I / SI1-SI2 +2-3.5%, J-K / SI1 -3%