The IDEX Online Polished Price Report - January 2020

By Danielle Max / February 02, 2020 / www.idexonline.com / Article Link

(IDEX Online) - Prices of round diamonds continued to be fairly stable in December, with many categories seeing isolated or limited changes. The changes that occurred in goods below 1.00 carat were mostly positive; 0.30-0.39 cts, D/VVS1-VS2 increased 2-4 percent, 0.90-0.99 cts, G-J / VVS2 increased 1.5-3.5 percent. Items sized 2.00-4.00 carats saw some negative change, with the 2.00-2.99 carat category, LMN / I1 and D / I1-3  seeing downward movement of 2 to 5 percent.

Continuing a trend seen in December, smaller fancies, those below 0.70 carats, saw very little movement. Most of the changes took place in goods sized between 0.70-1.24 carats, with price swings both upwards and downwards. Goods in the 1.00 carat range, HIJ / VVS2-VS1, saw rises of 2-3 percent. 

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

To receive a free copy of the full IDEX Online Diamond Price Report, contact prices@idexonline.com.

Rounds

0.18-0.22 ct. no changes

0.23-0.29 ct. K / SI1 +6%

0.30-0.39 ct. D / VVS1-VS2 +2-4%, I-J / VS1 -3%

0.40-0.44 ct. K / VS2-SI1 +3%

0.45-0.49 ct. D / VVS1-2 +3-4% and L-M / SI3 -4-5% 

0.50-0.69 ct. I / VVS1-2 +3-4% and K / Vs1 and SI1 +2.5-3%

0.70-0.79 ct. D / IF +3%, F / VVS2 +1% and H / VVS1 +3%

0.80-0.89 ct. No changes

0.90-0.99 ct. G-J / VVS2 +2-4% and E / SI2-I1 +2-3%

1.00-1.24 ct. E / VVS2 -2.5%, F / VS1 -3% and G / SI1 -3%

1.25-1.49 ct. E / VVS1-2 +3%

1.50-1.99 ct. L-N / I1 -3-5%

2.00-2.99 ct. D / I1-I3 -2-5%, L-N / I1 -3-4% and N / VVS2-VS1 +2-4%

3.00-3.99 ct. H-I / VVS1 +2-3%, J-K / VVS1 -3%  and L-M / VVS2-VS1 -1-3%

4.00-4.99 ct. F-L / I1 +1-4% and D-E / VS2-SI2 -1-3% and I-J / I2-I3 -3-5% 

5.00-5.99 ct. A few negative changes in the medium colors and qualities

Fancy Cuts

0.18-0.22 ct. D / SI2 +5%, 

0.23-0.29 ct. D / SI1 -4%, D / SI2 +5% and G / VS2 +4%

0.30-0.39 ct. H / VVS1 -3% and I / VVS1 +3%

0.40-0.44 ct. F / VVS2 -4%, G / IF +3% and G / VS2 -2%

0.45-0.49 ct. E / VS2 -3.5%

0.50-0.69 ct. F / SI1 and I2 +2-4% and H / VVS2 -1.5%

0.70-0.79 ct. D / VS1-2 -3% and F / VVS2-VS1 +3%

0.80-0.89 ct. H / VVS1-VVS2 -3% and E / VVS2 and I1 +3%

0.90-0.99 ct. D and H / VVS1 -3% 

1.00-1.24 ct. I-J / VVS2-VS2 +2-4% and F / VVS2-VS1 -3.5%. 

1.25-1.49 ct. H / VVS1 No changes

1.50-1.99 ct. G and L / IF -2-3%, D / SI2 +2%

2.00-2.99 ct. H-I / IF-VVS1 +3%

3.00-3.99 ct. E / VVS2 and SI1 -3% and E / SI3-I2 +3%

4.00-4.99 ct. D-E / VS1 -3% and D / VS2 +3%

5.00-5.99 ct. G / SI3-I2 -3% and F / VS1-2 +3%

Recent News

Silver inventories rebound in UK, output from major producers rises

December 15, 2025 / www.canadianminingreport.com

Silver's three-month outperformance continues

December 15, 2025 / www.canadianminingreport.com

Silver & Copper Supply Distortions Continue

December 08, 2025 / www.canadianminingreport.com

Gold stocks down in risk-on shift

December 08, 2025 / www.canadianminingreport.com

Gold stocks rocket on metal rebound and equities jump

December 01, 2025 / www.canadianminingreport.com
See all >
Share to Youtube Share to Facebook Facebook Share to Linkedin Share to Twitter Twitter Share to Tiktok