Discover the 6 Most Expensive Blue Diamonds in the World
Discover the 6 Most Expensive Blue Diamonds in the World

Among the most breathtaking gemstones ever discovered, blue diamonds stand in a league of their own. Known for their mesmerizing color, extreme rarity, and historical allure, these extraordinary gems have fascinated royalty, collectors, and connoisseurs for centuries.
At Multi Gems & Jewellery Dubai, we celebrate the timeless sophistication of blue diamonds symbols of wealth, power, and eternal beauty.
The History and Origin of Blue Diamonds

The story of the blue diamond begins in India’s legendary Golconda mines, where gems like the Hope Diamond first emerged, capturing the world’s imagination. Over time, deposits were also found in Brazil and South Africa especially at the famed Cullinan Mine, which remains the source of some of the world’s most valuable blue diamonds.
Blue diamonds are among the rarest gems on Earth, representing less than 0.1% of all diamonds mined. Their extraordinary blue hue comes from trace amounts of boron within their crystal structure, giving rise to tones that range from delicate sky blues to deep, oceanic shades. These stones are typically Type IIb diamonds, a rare classification known for exceptional clarity and the ability to conduct electricity a unique trait that sets them apart from all other diamonds.
Blue Diamond Grading and Value

Just like all diamonds, blue diamonds are graded according to the Four Cs: color, clarity, cut, and carat. However, color is the most defining factor of their value. The Gemological Institute of America (GIA) categorizes blue diamonds from Fancy Light Blue to Fancy Vivid Blue the latter being the most valuable and coveted due to its intense, pure saturation.
Only about 1% of all blue diamonds achieve a Fancy Vivid Blue grade, making them exceptionally rare and sought-after. These diamonds are often untreated and naturally colored, with each stone requiring meticulous cutting to reveal its full brilliance. Cushion and pear shapes are particularly popular, enhancing both their color and fire.
Type IIb Blue Diamonds – Nature’s Electrical Marvels

Type IIb blue diamonds are the pinnacle of rarity. Containing boron and minimal nitrogen, they exhibit remarkable purity and transparency, often accompanied by subtle grayish or silvery undertones. Beyond their breathtaking color, these gems possess semiconductive properties, making them both scientifically and aesthetically extraordinary. Famous examples like the Hope Diamond exemplify the unmatched beauty of this rare diamond type.
6 Most Expensive Blue Diamonds Ever Sold
Blue diamonds regularly command record-breaking prices at global auctions. Below are six of the most valuable and iconic blue diamonds ever discovered:
1. The De Beers Blue Diamond – $57.5 Million

Sold by Sotheby’s in April 2022, this 15.10-carat Fancy Vivid Blue diamond set a world record at $57.5 million. Graded Internally Flawless by the GIA and classified as a Type IIb diamond, it remains one of the most exquisite blue diamonds ever auctioned. Its flawless clarity, rich hue, and step-cut perfection solidify its position as a masterpiece of natural art.
2. The Blue Moon of Josephine – $48.5 Million

This 12.03-carat Fancy Vivid Blue diamond, discovered in South Africa’s Cullinan Mine, achieved over $4 million per carat, one of the highest per-carat prices in history. Now known as the Blue Moon of Josephine, it mesmerizes collectors with its ethereal glow and perfect symmetry — a celestial gem worthy of its poetic name.
3. The Apollo and Artemis Diamonds – $42.1 Million

A rare pairing of color and symmetry, these two remarkable gems the Apollo Blue (14.54 carats, Fancy Vivid Blue) and the Artemis Pink (16.00 carats, Fancy Intense Pink) were auctioned together for $57.4 million, with the blue diamond alone fetching $42.1 million. Their divine names perfectly capture their mythic allure and harmonious brilliance.
4. The Zoe Diamond – $32.6 Million

At 9.75 carats, this Fancy Vivid Blue pear-shaped diamond achieved $32.6 million at Sotheby’s New York in 2014. Once part of the collection of Mrs. Paul Mellon, it stands as a symbol of refined taste, timeless design, and the enduring prestige of elite jewelry craftsmanship.
5. De Beers Millennium Jewel 4 – $32.2 Million

Sold in Hong Kong in 2016, this 10.10-carat Internally Flawless Fancy Vivid Blue diamond is part of the iconic De Beers Millennium Jewels Collection. Inscribed with its name and famed for its luminous color, it remains a testament to De Beers’ unparalleled legacy in diamond excellence.
6. The Infinite Blue – $25.8 Million

Sold in 2023 for $25.8 million, this 11.28-carat radiant-cut Fancy Vivid Blue diamond represents the newest chapter in blue diamond history. Its deep tone and remarkable fire illustrate nature’s perfect artistry, making it one of the most significant modern blue diamond discoveries.
The Allure of Blue Diamonds
From royal treasuries to modern museums, blue diamonds continue to embody power, prestige, and eternal beauty. Their natural rarity, exceptional formation, and mesmerizing hue make them the pinnacle of luxury in the world of fine jewelry. At Multi Gems & Jewellery Dubai, we curate exquisite collections of natural blue diamonds, ensuring every gem we offer reflects the same integrity, brilliance, and authenticity that defines these legendary stones.
Key Takeaways
- Origin: Primarily found in South Africa’s Cullinan Mine; first sourced from India’s Golconda region.
- Color & Composition: Caused by boron; ranges from Light Blue to Fancy Vivid Blue; accounts for <0.1% of all diamonds.
- Cut & Shape: Cushion and pear cuts maximize color depth and brilliance.
- Type: Type IIb – the rarest and purest blue diamonds.
- Certification: GIA graded Fancy Light to Fancy Vivid Blue; authenticity guaranteed.
- Record Prices: Sales exceeding $57 million; over $4 million per carat for exceptional stones.
- Collector Appeal: Prized for vivid color, historic provenance, and unparalleled rarity.
Final Thoughts
From the Hope Diamond’s legendary legacy to the modern marvel of the De Beers Blue, blue diamonds continue to inspire awe across generations. As symbols of grace and perfection, they represent not just material beauty but the very essence of rarity itself. Whether for investment or admiration, blue diamond jewelry in Dubai remains an enduring testament to the artistry of nature and human craftsmanship combined.
