What is a Blue Diamond? - South Shore Diamond Exchange
Select Page

Blue diamonds are among the rarest and most captivating gemstones in the world, known for their breathtaking beauty and distinctive color. At South Shore Diamond Exchange, we are passionate about helping our customers understand and appreciate these extraordinary gems. If you’ve ever wondered what makes a blue diamond so special, this guide will walk you through everything you need to know about these stunning stones.

A Few Interesting Facts About Blue Diamonds

1. The Role of Boron in Blue Diamonds’ Color

The captivating blue hue of these diamonds is due to the presence of boron, a rare element that becomes part of the diamond’s crystal structure during its formation. The amount of boron present directly impacts the intensity of the blue color. Diamonds with higher boron content display deeper and more vivid blue tones, while those with less boron tend to have lighter shades.

2. Electrical Conductivity in Blue Diamonds

Beyond their stunning color, blue diamonds have a unique property—electrical conductivity. Unlike most diamonds, which are non-conductive, the boron within blue diamonds allows them to conduct electricity. This fascinating feature adds another layer of intrigue to these already rare and remarkable gems, setting them apart from other diamonds in more ways than one.

3. The Rarity of Blue Diamonds

Among all fancy color diamonds, blue diamonds are among the rarest. Only a small number of these diamonds are discovered each year, making them highly coveted. To put their rarity into perspective, blue diamonds make up less than 0.02% of all diamonds mined globally. This limited availability significantly contributes to their allure and value in the jewelry world.

4. Famous Blue Diamonds in History

Blue diamonds have captivated royalty and collectors for centuries, and several famous blue diamonds have left their mark on history. Perhaps the most famous is the Hope Diamond, a 45.52-carat deep blue diamond with a long and mysterious history. It is believed to have originated in India and has passed through the hands of kings, socialites, and even thieves. Today, the Hope Diamond resides in the Smithsonian Institution, where it remains one of the most visited and studied gemstones in the world.

Another noteworthy blue diamond is the Blue Moon Diamond, a 12.03-carat Fancy Vivid Blue gem. This stunning diamond was sold for a record-breaking $48.4 million at auction in 2015, making it one of the most expensive diamonds ever sold. The Blue Moon Diamond’s intense color and impeccable clarity make it a prime example of the beauty and value of blue diamonds.

5. Blue Diamonds and Their Grading

Like all diamonds, blue diamonds are graded based on the 4 Cs—color, cut, clarity, and carat weight. However, color plays an especially crucial role in the valuation of blue diamonds. It’s important to note that color distribution also affects the diamond’s grade. The most valuable blue diamonds display uniform color throughout the stone, with no visible variations or patches. Diamonds with uneven color distribution are considered less desirable and often fetch lower prices.

6. Celebrities and Blue Diamonds

Blue diamonds have also made their way into the world of Hollywood and high fashion. Celebrities and public figures often wear blue diamonds to make a statement at prestigious events. For example, actress Jennifer Lopez famously wore a blue diamond engagement ring during her engagement to Ben Affleck in 2002, which was valued at over $1 million at the time. This helped cement blue diamonds as a symbol of luxury, status, and exclusivity.

Similarly, blue diamond jewelry has appeared on the red carpet at events like the Oscars and Cannes Film Festival, where stars showcase the rare and stunning beauty of these gems.

The Color Grading of Blue Diamonds

The color of a blue diamond is its most defining feature, and the grading system reflects the intensity and richness of that color. Blue diamonds are graded on a scale from Faint Blue to Fancy Vivid Blue, with each level representing a different saturation of the blue hue. The deeper and more intense the color, the more valuable the diamond. Let’s take a closer look at the different grades.

Faint Blue

At the lower end of the scale, Faint Blue diamonds have a very subtle hint of blue. The color may be so light that it appears almost white or gray in certain lighting. While still beautiful, faint blue diamonds are less expensive than those with stronger blue tones, making them a more affordable option.

Light to Fancy Light Blue

As the color intensifies, Light Blue and Fancy Light Blue diamonds have a soft, pastel-like hue. The blue is more noticeable than in the faint category but still relatively light. These diamonds offer a gentle pop of color, perfect for those who prefer a subtle, delicate blue.

Fancy Blue

Fancy Blue diamonds show a stronger and more vivid blue color. At this level, the hue is more prominent and rich, making these diamonds both rare and desirable. The color is deeper than in the lighter categories, striking a balance between price and vibrancy.

Fancy Intense Blue

With Fancy Intense Blue diamonds, the color becomes much deeper and more saturated. These diamonds are prized for their vibrant hue and are highly sought after. The intense color adds to their rarity and value, making them a popular choice for those seeking a bold and luxurious look.

Fancy Vivid Blue

Fancy Vivid Blue diamonds represent the highest grade of color saturation. These diamonds have the deepest and most striking blue, with uniform color throughout the stone. Fancy Vivid Blue diamonds are the rarest and most valuable, known for their rich and dramatic color that stands out in any setting.

Why Color Matters

The color of a blue diamond is determined by the amount of boron in its crystal structure. As the concentration of boron increases, the blue hue becomes deeper. Fancy Vivid Blue diamonds are incredibly rare and prized for their even, intense color, making them the most coveted blue diamonds in the world.

Why Are Blue Diamonds So Valuable?

Blue diamonds are not only rare, but they also possess a mystique and allure that makes them highly desirable. Their unique color sets them apart from traditional white diamonds, and their scarcity further adds to their appeal. Several factors contribute to their high value:

  • Rarity: With only a small number of blue diamonds found each year, their rarity makes them incredibly valuable.
  • Historical Significance: Many famous blue diamonds, such as the Hope Diamond, have a rich history that adds to the intrigue and value of these stones.
  • Timeless Beauty: The captivating blue hue of these diamonds ensures they never go out of style, making them a favorite among collectors and those seeking a truly special piece of jewelry.

Blue Diamonds in Jewelry

Blue diamonds have long been admired for their rarity and breathtaking color, making them a coveted choice in fine jewelry. Their unique hue, ranging from light blue to deep, vivid shades, creates a stunning contrast with traditional white diamonds and various precious metals, allowing for both classic and contemporary designs. Blue diamonds are often set in high-end pieces such as engagement rings, necklaces, earrings, and bracelets, adding a touch of luxury and elegance.

Blue Diamond Engagement Rings

For those seeking a truly unique symbol of love, blue diamond engagement rings offer an extraordinary alternative to the traditional white diamond. The rich color of a blue diamond can be highlighted in various settings, from solitaires to halo designs, where white diamonds surround the center stone to enhance its brilliance. These rings often become cherished heirlooms due to their rarity and timeless beauty.

Necklaces and Earrings

Blue diamonds also make stunning focal points in necklaces and earrings. A blue diamond pendant or a pair of blue diamond studs can serve as an elegant statement piece, drawing attention with their rare and captivating color. Many custom jewelry pieces combine blue diamonds with white diamonds or other gemstones to create intricate and luxurious designs.

Customization and Versatility

One of the great aspects of blue diamonds in jewelry is their versatility. Whether used as the centerpiece in a bold, modern design or as an accent stone in more traditional settings, blue diamonds offer endless possibilities for customization. At South Shore Diamond Exchange, we specialize in creating one-of-a-kind pieces, allowing you to design something that reflects your personal style and the unique beauty of a blue diamond.

Conclusion

Blue diamonds are truly one of nature’s most extraordinary gems. With their captivating color, rarity, and timeless beauty, they are a stunning choice for those looking to add something unique and valuable to their jewelry collection. At South Shore Diamond Exchange, we are here to guide you through the process of selecting the perfect blue diamond, ensuring you make a confident and informed choice.