What Color Diamond Is The Most Expensive?

Welcome to another informative piece from the knowledgeable and skilled staff at Siebke Hoyt, a proud family-owned business founded in 1889. Our long-standing history and expertise in the jewelry industry underpin the rich content we provide. Today, we delve into an intriguing aspect of our field: diamond colors and their impact on value.

Understanding the Basics of Diamond Color

Before we explore the hues that command the highest prices, let's clarify the fundamentals of diamond color. The Gemological Institute of America (GIA) uses a grading system that classifies diamonds from D (colorless) to Z (light yellow or brown). However, beyond the Z grade, a realm of vibrant color awaits the realm of fancy-colored diamonds.

Color affects diamond prices significantly. While a completely colorless diamond is typically highly sought after in white diamonds, the opposite is true when it comes to fancy-colored diamonds. These precious stones derive their worth from the intensity of their color.

Introduction to Fancy Colored Diamonds

Fancy-colored diamonds refer to diamonds with color intensity beyond the Z grade. They acquire their captivating hues due to varying geological conditions and the presence of certain trace elements during their formation.

These diamonds, due to their rarity and the mesmerizing hues they exhibit, are generally more desirable (and thus pricier) than their less colorful counterparts.

Specific Fancy Diamond Colors and Their Prices

Each color of fancy diamond comes with its own level of rarity and therefore its unique price point. Let's take a look at some specific colors and their famous examples:

Blue Diamonds

Known for their exquisite beauty, blue diamonds owe their color to the presence of boron during formation. Notable examples include:

  • The Hope Diamond: Perhaps the most famous blue diamond in the world, currently housed in the Smithsonian Institution.
  • The Blue Moon Diamond: A stunning stone that sold for $48.4 million in 2015, setting a world record at the time.

Green Diamonds

The rare natural green diamond gets its hue from exposure to radiation over millions of years. Distinguished examples include:

  • The Dresden Green Diamond: The largest known natural green diamond, which has a historical significance dating back to the early 18th century.
  • The Aurora Green Diamond: This diamond made headlines in 2016 when it sold for $16.8 million.

Pink Diamonds

Pink diamonds, with their delicate allure, have their color origin still debated among scientists. Their popularity has skyrocketed in recent years. Renowned examples include:

  • The Pink Star Diamond: This mesmerizing stone holds the record for the highest price ever paid for a diamond or any gemstone at auction: $71.2 million.
  • The Graff Pink Diamond: This incredibly rare diamond sold for a whopping $46.2 million in 2010.

Red Diamonds

Red diamonds are the rarest of the colored diamonds. Notable examples include:

  • The Moussaieff Red Diamond: This triangular-cut beauty is the largest known red diamond in the world.
  • The Hancock Red Diamond: Known for its incredible purplish-red hue, this diamond has a rich history and significant value.

The Most Expensive Diamond Color

Out of all the colors, the title for the most expensive diamond color goes to the extremely rare and alluring red diamonds. What makes these diamonds top the chart are:

  • Rarity: Red diamonds are incredibly scarce. There are only a known few in the world, thus driving up their price.
  • High demand: The demand for these mesmerizing stones significantly outweighs the supply, further elevating their value.
  • Exceptional beauty: Red diamonds exhibit a captivating hue that is seldom seen in any other gemstone.

As an illustration, the Moussaieff Red Diamond, mentioned earlier, is estimated to be worth well over $20 million today.


Color significantly influences the value of a diamond, with red diamonds being the most expensive due to their extreme rarity, high demand, and exceptional beauty. However, at Siebke Hoyt, we believe that every diamond, regardless of its color, holds its own unique allure and charm.

Our philosophy is to provide quality merchandise at a fair price, and our friendly, knowledgeable staff, with an average tenure of eight years, is here to help you explore the vast world of diamonds. Feel free to contact us or book an appointment for a personalized shopping experience.

Remember, beauty lies in the eye of the beholder, and there is a diamond out there for everyone. To discover more interesting facts about diamonds and other precious gems, check out our blog. Happy gem hunting!