Investor Learning Center

Rough Diamond Evaluation

Once diamonds have left a processing plant, diamond rich concentrate is delivered to manufacturers for cleaning, sorting, and analysis. At this point any additional material attached to the rough diamonds is removed and a rough diamond goes thorough inspection. Each rough diamond is scanned to determine it’s specific dimensions and if it contains any inclusions or imperfections. This part of the process ensures that a rough diamond is cut in a specific shape and proportion in order to allow it to fetch its highest potential value for the manufacturer.

rough-eval

In order for a rough diamonds value to be accurately determined requires the manufacturer to evaluate a stone based on 3 major criteria.

A. Weight Retention

B. Market Value

B. Color Retention

Once the optimal shape has been determined a rough diamond is sent a gem cutter where the diamond is is transformed from a rough stone to a polished gem.


Read the next article:

Investing In Fancy Colored Diamonds

Investing in rare colored diamonds is a long-term investment. The economic cycles of the past 15 years have seen colored diamonds reach new heights in value as price records were broken.

Historical Price Tracking System
  • Pink
  • Yellow
  • Blue
  • Red
Investor Learning Center
The Investor Learning Center was created to provide investors with the tools to make the right decision when it comes to investing in Rare Colored Diamonds.
Access our archives of exciting documentary video, informational content, historical pricing, and much more.
Start Learning

Featured On Fox Business News

Watch Harold's latest interview: "Diamonds are an investor's best friend" on Fox Business News: Risk & Reward with Deidre Bolton.

The GIA report for this diamond is not posted on the website at this time however it is available. Please fill out a form to inquire or call us directly at 800-456-3934 for more information.

1 Carat Radiant Cut Fancy Vivid Pink

  • Year: 1980
  • Total Price: $50,000
  • Price per Carat: $50,000
  • Source: Private Sale

1 Carat Radiant Cut Fancy Vivid Pink

  • Year: 1990
  • Total Price: $150,000
  • Price per Carat: $150,000
  • Source: Auction

1 Carat Radiant Cut Fancy Vivid Pink

  • Year: 2000
  • Total Price: $500,000
  • Price per Carat: $500,000
  • Source: Private Sale

1 Carat Radiant Cut Fancy Vivid Pink

  • Year: 2008
  • Total Price: $1,000,000
  • Price per Carat: $1,000,000
  • Source: Auction

1 Carat Radiant Cut Fancy Vivid Pink

  • Year: 2009
  • Total Price: $1,090,500
  • Price per Carat: $1,090,500
  • Source: Private Sale

1 Carat Radiant Cut Fancy Vivid Pink

  • Year: 2020
  • Total Price: $2,828,187*
  • Price per Carat: $2,828,187*

*Estimated value based on current market trend

1 Carat Radiant Cut Fancy Vivid Pink

  • Year: 2025
  • Total Price: $4,361,506*
  • Price per Carat: $4,361,506*

*Estimated value based on current market trend

1 Carat Radiant Cut Fancy Intense Yellow

  • Year: 1980
  • Total Price: $1,000
  • Price per Carat: $1,000
  • Source: Auction

1 Carat Radiant Cut Fancy Intense Yellow

  • Year: 1990
  • Total Price: $3,000
  • Price per Carat: $3,000
  • Source: Private Sale

1 Carat Radiant Cut Fancy Intense Yellow

  • Year: 2000
  • Total Price: $9,000
  • Price per Carat: $9,000
  • Source: Auction

1 Carat Radiant Cut Fancy Intense Yellow

  • Year: 2008
  • Total Price: $23,500
  • Price per Carat: $23,500
  • Source: Private Sale

1 Carat Radiant Cut Fancy Intense Yellow

  • Year: 2009
  • Total Price: $26,300
  • Price per Carat: $26,300
  • Source: Auction

1 Carat Radiant Cut Fancy Intense Yellow

  • Year: 2012
  • Total Price: $32,000
  • Price per Carat: $32,000
  • Source: Private Sale

1 Carat Radiant Cut Fancy Intense Yellow

  • Year: 2020
  • Total Price: $53,993*
  • Price per Carat: $53,993*

*Estimated value based on current market trend

1 Carat Radiant Cut Fancy Intense Yellow

  • Year: 2025
  • Total Price: $74,873*
  • Price per Carat: $74,873*

*Estimated value based on current market trend

1 Carat Radiant Cut Fancy Vivid Blue

  • Year: 1980
  • Total Price: $60,000
  • Price per Carat: $60,000
  • Source: Private Sale

1 Carat Radiant Cut Fancy Vivid Blue

  • Year: 1990
  • Total Price: $200,000
  • Price per Carat: $200,000
  • Source: Private Sale

1 Carat Radiant Cut Fancy Vivid Blue

  • Year: 2000
  • Total Price: $600,000
  • Price per Carat: $600,000
  • Source: Private Sale

1 Carat Radiant Cut Fancy Vivid Blue

  • Year: 2008
  • Total Price: $1,350,000
  • Price per Carat: $1,350,000
  • Source: Private Sale

1 Carat Radiant Cut Fancy Vivid Blue

  • Year: 2009
  • Total Price: $1,494,000
  • Price per Carat: $1,494,000
  • Source: Auction

1 Carat Radiant Cut Fancy Vivid Blue

  • Year: 2020
  • Total Price: $4,555,497*
  • Price per Carat: $4,555,497*

*Estimated value based on current market trend

1 Carat Radiant Cut Fancy Vivid Blue

  • Year: 2025
  • Total Price: $7,561,708*
  • Price per Carat: $7,561,708*

*Estimated value based on current market trend

1 Carat Radiant Cut Fancy Red

  • Year: 1950
  • Total Price: $13,800
  • Price per Carat: $13,800
  • Source: Private Sale

1 Carat Radiant Cut Fancy Red

  • Year: 1987
  • Total Price: $927,000
  • Price per Carat: $927,000
  • Source: Auction

1 Carat Radiant Cut Fancy Red

  • Year: 2008
  • Total Price: $2,000,000
  • Price per Carat: $2,000,000
  • Source: Private Sale

1 Carat Radiant Cut Fancy Red

  • Year: 2009
  • Total Price: $2,074,600
  • Price per Carat: $2,074,600
  • Source: Private Sale

1 Carat Radiant Cut Fancy Red

  • Year: 2020
  • Total Price: $3,103,720*
  • Price per Carat: $3,103,720*

*Estimated value based on current market trend