Diamond Prices – December 2020

Just like many markets, the diamond market has changed drastically throughout the COVID-19 pandemic. However, the average price of round diamonds for December illustrates a slight increase since last month. Let’s take a closer look at the average price of round diamonds for December 2020 and how the prices differed from November 2020.


Top 5 popular diamond shapes for December 2020.

Top 5 Popular Diamond Shapes for December 2020

Round diamonds continue to be the most popular cut of diamond on the market consuming 74.27% of the market’s popularity. Followed by Oval (5.76%) and Emerald (4.87%) placing third. Oval cuts have recently made a comeback – surpassing Princess cut by a long haul. 


Diamond Prices December 2020
Diamond Prices December 2020


The table below gives you the rundown and details of the changes for the past month (8/01/2020 – 12/01/2020).

Diamond Price Changes from 8/1/2020 to 12/1/2020
Diamond Carat Sizes 8/1/2020 9/1/2020 10/1/2020 11/1/2020 12/1/2020
0.0 – 0.5 2 % 5 % 5 % 5 % 1 %
0.5 – 1.0 0 % 3 % 6 % -1 % 2 %
1.0 – 2.0 0 % 0 % 3 % -1 % 1 %
2.0 – 3.0 0 % 0 % 2 % -1 % 0 %
3.0 – 4.0 0 % 0 % 1 % -1 % 1 %
4.0 – 99 -1 % 2 % 0 % -1 % 0 %

This December the average diamond price per carat for a round diamond of 1- 1.4 carat G color VS1 clarity is $7,671 compared to November which was an average of $7,585. We have seen a positive increase over the past month. I predict that the Thanksgiving holiday saw many consumers splurge on high-end products causing a positive spike in the average price of round diamonds. 


The current average and lowest prices per carat prices are shown in PriceScope’s diamond price charts by carat and their corresponding color and clarity. 

Average Diamond Price per Carat (12/01/2020)


We advise consumers to keep in mind that cut quality and vendor services such as upgrades and returns can make a significant difference in the price point when shopping for loose diamonds.

PriceScope has been collecting retail diamond prices since 2007 of over 500,000 diamonds. PriceScope diamond price chart page shows the full diamond price charts for rounds and other fancy shapes. We update the diamond prices on a monthly basis. Stay tuned for January’s diamond prices. 

With the holiday season well underway and many people conforming to this ‘new’ way of living – Could we see the average price of round diamonds begin to increase over December? Share your thoughts with us by clicking on the “comments” button below.




US Polished Imports Continue to Drop

The US recorded its 18th consecutive monthly fall in polished-diamond imports as the coronavirus pandemic continued to affect trading. Shipments dropped 10% year on year to $1.34 billion in September — the gentlest decline since March, according to data from the US Commerce Department. The category hasn’t seen an increase since April 2019. 

Coronavirus Updates: Impact on the Diamond Trade

The Covid-19 pandemic that has swept the globe has had a notable impact on the diamond industry, with new developments unfolding every day. Here, we present a one-stop, running news feed on industry events impacted by the virus.

Rapaport Weekly Market Comment 

Jewelers upbeat about the holiday season amid strong e-commerce and lucrative early gift shopping. Last-minute US orders and preparations for Chinese New Year driving polished trading. China jewelry market robust.


IDEX Polished Diamond Price Index Remains Virtually Flat 

The IDEX Polished Diamond Price Index remained virtually unchanged for a second consecutive month, suggesting a slowdown in the recovery. Month-on-month prices saw a slight drop after three months of growth.  November saw the Index in slight overall decline, closing down 0.13 percent at the end of the month. October also saw next to no movement, rising fractionally by just 0.02 percent.

By Andrey Pilipchak

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