Jewelry Trends

How Much is a Blue Diamond Worth?

Dustin Lemick


Dustin Lemick

Blue diamonds have left both collectors and enthusiasts in awe with their unique hues and extreme rarity. So, how much is a blue diamond worth, and how do they compare to “normal” diamonds?

The Hope Diamond

What You Will Learn

What are Blue Diamonds?

Blue diamonds, known for their captivating and unparalleled colors, owe their mesmerizing shades of fancy blue to trace elements — particularly boron — within their crystal structure. The intensity and hue of the blue can vary widely, creating a diverse spectrum of breathtaking shades.

Blue diamonds’ value is all about the color. Unlike colorless diamonds, where cut takes precedence, it’s the hue that matters most for blue diamonds.

But there’s more to it than just the blue. Here are the elements of color that matter most:

  • Primary Hue: Blue diamonds may sometimes contain hints of green or, more rarely, purple. Neither of these secondary hues is super-desirable. A pure blue diamond is best.
  • Tone Matters: The tone of a blue diamond is important, too. Diamonds that are either very light blue or very deep blue don’t command high prices because they don’t show off that beautiful blue hue well.
  • Saturation Rules: Some blue diamonds with a lower saturation level may appear a bit grayish, and these are less desirable. Highly saturated, untreated, faint blue diamonds are the most desirable and fetch top prices.

Blue diamonds’ value is all about the color

What Classifies a Diamond's Color as "Fancy"?

You may see blue diamonds described as “fancy blue.” What exactly does that mean?

The Gemological Institute of America (GIA) uses a grading system that designates colored diamonds as Faint, Very Light, Light, Fancy Light, Fancy, Fancy Dark, Fancy Deep, Fancy Intense, or Fancy Vivid. These classifications indicate the gem’s tone and saturation.

Fancy color diamonds are considered the best out of the colored diamonds, as the darker and more vivid, the better. In other words, if “fancy” is in the name, the color is simply more striking.

Here are some examples of what these classifications mean:

  • Fancy Vivid Blue Diamonds: At the pinnacle of rarity and value, Fancy Vivid Blue Diamonds exhibit a deep, intense blue color that exudes unparalleled beauty and fascination. They’re the crown jewels of the blue diamond world, commanding the highest prices on the market.
  • Fancy Deep Blue Diamonds: Slightly less intense than vivid blues, Fancy Deep Blue Diamonds are nonetheless highly valuable and sought after. Their deep and rich hues make them a captivating choice for collectors and connoisseurs.
  • Fancy Light Blue Diamonds: For those who appreciate subtler shades, Fancy Light Blue Diamonds offer a delicate charm. While lighter in color, they possess their own unique allure and are treasured by individuals who prefer a more understated elegance.

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Famous Fancy Blues

Several famous blue diamonds have captured the world’s attention. Perhaps the most iconic is the Hope Diamond, a 45.52-carat, deep-blue diamond renowned for its fascinating history, legendary curse, and undeniable allure.

Factors Influencing Blue Diamond Worth

Blue diamond value is not only determined by color. Here are the other key considerations:

1. Carat Weight: The size of the diamond, measured in carats, plays a key role in determining a blue diamond’s price. In general, larger blue diamonds are rarer and thus more expensive. However, it’s important to note that carat weight is just one element that impacts a blue diamond’s cost.

2. Color Intensity: The depth and intensity of the blue hue are central to determining a blue diamond’s worth. The more intense and pure the blue color, the greater the price tag. Fancy vivid blue diamonds, with their deep, saturated color, are highly prized and can command top prices in the market.

3. Natural Origin: Natural blue diamonds, formed deep within the Earth’s mantle over billions of years, are highly esteemed. Their natural origin adds to their rarity.

4. Rarity: Blue diamonds are inherently rare, but additional factors, such as unique inclusions or exceptional clarity, can further elevate their worth.

Blue Diamonds Market Value: What is a Blue Diamond Worth?

A blue diamond’s value will vary significantly based on the aforementioned factors. On average, blue diamonds can range in price from thousands of dollars per carat to a million per carat.

In fact, some expensive blue diamonds, such as the Blue Moon, have fetched prices exceeding a million dollars per carat at auction.

The exact value of a blue diamond depends on a combination of its carat weight, color intensity, natural origin, and overall rarity.

How Much is a 1 Carat Blue Diamond Worth?

To provide a more specific estimate, let’s consider a 1-carat blue diamond’s worth with good color intensity and clarity. Such a diamond can be valued at anywhere from $50,000 to $200,000 or more.

However, it’s important to note that this is a ballpark estimate, and the actual blue diamond price per carat will vary significantly based on specific attributes. Each blue diamond is unique, and its value is assessed case-by-case.

As a result of their dwindling supply and rising demand, authentic blue diamonds rank among the priciest gemstones on the Fancy Color Diamond market. Their prices consistently surge each year, reaching record-breaking levels.


How much do blue diamonds cost?

Blue diamonds are among the rarest and most valuable gemstones, and their cost can vary significantly based on color intensity, clarity, cut, and overall quality. Generally, blue diamond prices start at several thousand dollars per carat.

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What is the typical 1 carat blue diamond price?

For a 1 carat blue diamond with good color intensity and clarity, you can expect to pay anywhere from $30,000 to $100,000 or more, depending on specific attributes and current market conditions.

What are fancy intense blue diamonds, and how do they fit into the world of fancy colored diamonds?

Fancy intense blue diamonds are a subset of fancy-colored diamonds renowned for their captivating and vibrant blue hue. These diamonds stand out due to their intense and saturated blue color, making them highly coveted in the world of colored gemstones.

What is the current price per carat fancy vivid blue diamond jewelry goes for?

Fancy vivid blue diamonds are among the rarest and most sought-after gemstones, which often translates into higher prices. As a general guideline, you can expect the price for a fancy vivid blue diamond to start at around $100,000 per carat, for smaller stones with moderate color intensity and clarity.

Protect Your Investment

Blue diamonds’ scarcity, symbolism, and inherent value make them an exceptional choice for investors, jewelers, and collectors seeking to leverage their unique qualities. Nothing quite makes a statement like a natural blue diamond.

Whether you’ve purchased a blue diamond recently or have your eye on one, ensure all your jewelry investments are protected. At BriteCo, we offer comprehensive and cost-effective jewelry insurance coverage. Our policies protect against loss, theft, and damage worldwide, ensuring your investment — including blue diamonds! — is safeguarded with confidence.

To learn more, contact us directly or use our convenient online tool to obtain a personalized insurance quote.

Also Check:

How Much Is a Black Diamond Worth? | BriteCo Jewelry Insurance
How to Identify a Raw Diamond | BriteCo Jewelry Insurance
Heart Cut Diamonds: Love in Every Facet
Black Diamond Engagement Ring Meaning
How Much is A Ruby Worth? | BriteCo Jewelry Insurance
How Much Are Emeralds Worth? | BriteCo Jewelry Insurance

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Dustin Lemick


Dustin Lemick

Dustin Lemick is the Founder and CEO of BriteCo and a third-generation jeweler with over thirteen years of retail jewelry experience. He holds a Graduate Gemologist degree from the Gemological Institute of America (GIA) and has in-depth knowledge and expertise in appraisal systems, diamond and gemstone markets, retail pricing models, insurance replacement models, and jewelry quotation pricing systems.