Natural Color Blue Diamonds

Natural blue diamonds are among the rarest gemstones on Earth, admired for their luminous hues and exceptional brilliance.

At Langerman Diamonds, we specialise exclusively in naturally color diamonds. Our collection of blue stones spans from the lightest Sky Blue to the deep mystery of Indigo, each one a natural marvel formed over billions of years. Every diamond is carefully selected, and ethically sourced, guaranteeing authenticity and quality.

Browse all natural color diamonds or continue below to learn what defines a blue diamond and explore the full spectrum of Langerman shades.

All Black Blue Brown Chameleon Gray Green Orange Pink Purple White Yellow

Discover Your Perfect Natural Blue Diamond

The color of natural blue diamonds can be reminiscent of deep ocean and clear skies. These rare gems are not only a feast for the eyes but also carry a legacy of intrigue and majesty. Natural blue diamonds are scarce, and sought after by collectors and investors alike.

Seeking a natural blue diamond for your collection, as a statement piece of jewelry, or as an investment? With over 50 years of industry experience, we are experts in our field. We help our clients find the natural blue diamond that resonates with their vision.

If you're curious about our natural blue diamonds or wish to explore our wide range of all-natural colored diamonds, please contact us. We're here to assist you.

What Is a Natural Blue Diamond?

A natural blue diamond is a diamond whose color forms deep within the Earth. The blue hue appears when trace amounts of boron become part of the diamond’s crystal structure during formation. This interaction causes the diamond to absorb red light and reflect shades of blue, producing a cool and captivating tone found in no other gem.

Unlike treated or synthetic stones, a natural blue diamond’s color is entirely organic and permanent. Each stone tells a geological story, revealing how nature combines time, pressure, and chemistry into pure beauty.

Langerman Blue Diamond Shades

Langerman Diamonds offers a complete spectrum of natural blue tones, each with its own personality and depth. These shades highlight the diversity and complexity of blue diamonds in nature.

Sky Blue: A soft, serene hue reminiscent of daylight and tranquility, ideal for elegant, understated designs.
Blue: The classic shade—balanced, pure, and versatile. Its brightness suits both modern and traditional settings.
Steel Blue: A sophisticated tone with subtle gray undertones, prized for its cool, contemporary aesthetic.
Indigo: Deep and velvety, with a mysterious richness that captures light dramatically.
Peacock: A rare interplay of blue and green with dark overtones, named for its vivid, iridescent quality.
Turquoise: Bright and lively, a radiant mix of blue and green tones that evoke tropical waters.

Each diamond shade is unique, ensuring that no two Langerman blue diamonds are ever the same. Whether you prefer the delicacy of Sky Blue or the intensity of Indigo, every shade is a genuine natural color.

Why Choose Langerman?

Natural authenticity: We sell only natural color diamonds—never treated or lab-grown.
Expert curation: Each blue diamond is hand-selected by our team of experts.
Personal guidance: Our specialists help you match color, cut, and carat to your vision.

To explore in greater detail, read our guide to Natural Blue Diamonds.

Color Grading and Value

Blue diamonds are graded for color intensity on a scale from Faint to Fancy Vivid. The stronger and purer the color, the rarer and more valuable the diamond becomes. Langerman’s team carefully assess each stone for tone, saturation, and hue balance to ensure you see its truest color under natural light.

Intensity: Ranges from Faint and Light to Fancy Intense and Fancy Vivid.
Hue purity: Stones with primary blue hue and less secondary undertones are the most prized.
Cut quality: Influences how color appears; a well-proportioned cut enhances brilliance and saturation.
Carat size: Larger blue diamonds with strong color are exceptionally rare and have a higher price tag.

Blue Diamonds vs. Sapphires

Though both gems share blue tones, they differ in composition, brilliance, and rarity. The table below highlights their key distinctions. Learn more about the differences in Blue Diamonds vs. Sapphires.

Property	Blue Diamond	Blue Sapphire
Composition	Pure carbon with trace of boron	Corundum with iron and titanium
Hardness (Mohs)	10	9
Optics	Exceptional brilliance and fire	Soft, velvety luster
Rarity	Extremely rare	More widely available
Color Variety	Sky, blue, steel, indigo, peacock, turquoise	Blue to violet with slight variation

FAQs about Natural Color Blue Diamonds

What Makes a Diamond Blue?

Natural blue diamonds owe their color to boron found within the crystal structure. Boron absorbs red, yellow, and green wavelengths of light, reflecting a beautiful blue hue. This unique interplay of elements gives natural blue diamonds their distinctive hue.

Are Blue Diamonds Rare?

Yes. Natural blue diamonds are among the rarest color diamonds, with only a tiny fraction of mined stones displaying a true blue hue.

Which Blue Diamond Shades Does Langerman Offer?

Our shades include Sky Blue, Blue, Steel Blue, Indigo, Green Blue, Peacock, and Turquoise. Each represents a distinct tone formed naturally over millennia.

How Valuable Are Blue Diamonds?

Blue diamonds are prized for their rarity, stunning color, and market demand. Deep and vivid blue diamonds are exceptionally rare and command higher prices. This is especially when they exhibit clear, unmodified hues.

Want to discover more about the fascinating world of diamonds? Our diamond encyclopedia has articles covering the history and grading of diamond colors.

Do You Sell Treated or Lab-grown Blue Diamonds?

No. Langerman offers only natural color diamonds.

Can Blue Diamonds Be Used in Engagement Rings?

Absolutely. With a hardness of 10 on the Mohs scale, blue diamonds are perfect for daily wear and offer a timeless, distinctive look.

Explore Natural Color Diamonds

Discover blue alongside pink, yellow, green, and many other hues in our All Natural Colored Diamonds collection. Each stone is a natural creation—certified, untreated, and ready for bespoke design.

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Contact Us

At Langerman Diamonds, we offer a personalized service and the finest quality diamonds to our clients. If you want to find a blue diamond to your collection, or for investment, we're here to assist. Get in touch with us today to explore our exquisite collection.