The Luna Azul
5.10 carat · Fancy Vivid Blue · VVS2 · Pear Shape
One of the world's Rarest Fancy Vivid Blue Diamond

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A mesmerizing blue electric swimming pool.
— David Rosenberg
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One of the World's Rarest Fancy Vivid Blue Diamonds
An extraordinary 5.10 carat pear-shaped diamond of mesmerizing beauty and profound rarity, The Luna Azul stands among the most exceptional Fancy Vivid Blue diamond’s ever discovered. Graded VVS2 clarity, this remarkable gemstone possesses an electric saturation and crystalline purity that place it within the highest echelon of important blue diamond’s known to the world.
Alive with a vivid and luminous “electric blue” glow, The Luna Azul radiates with a captivating depth reminiscent of moonlight reflected across the still surface of an endless ocean. Few natural diamonds possess such remarkable saturation combined with such extraordinary transparency, creating an effect of almost liquid brilliance within the stone itself. A blue diamond of this caliber transcends rarity and enters the realm of legend.
5.10 carat Fancy Vivid Blue VVS2 Pear-Shaped Diamond
Originally 12.61 carats · Cullinan Mine
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The Rough
The story of The Luna Azul began deep within the legendary Cullinan Mine in Gauteng, South Africa — one of the world’s most celebrated sources of exceptional Type IIa diamonds.
Originally known as the Premier Mine upon its discovery in 1905 and later renamed the Cullinan Mine, this historic source has produced some of the most important diamonds ever unearthed, including the famed Cullinan Diamond itself. Revered among collectors and gemologists alike, the mine is renowned for yielding extraordinary Type IIa crystals celebrated for their remarkable transparency, exceptional whiteness, and unparalleled chemical purity.
It was within this legendary earth that the original rough crystal of The Luna Azul emerged with an astonishing weight of 12.61 carats. From the moment of its discovery, the rough revealed a color unlike ordinary blue diamonds. The hue was vivid, luminous, and deeply saturated, a striking electric blue possessing extraordinary life and intensity. Such stones are encountered only on the rarest occasions in the history of gem discovery.
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The Planning of the Rough
The transformation of a rare blue diamond is among the most delicate and consequential processes in the world of haute joaillerie. For months, the rough crystal of The Luna Azul was meticulously studied by master cutters entrusted with preserving both its extraordinary weight and its incomparable color.
Every angle, inclusion, and plane of light was analyzed with uncompromising precision. In blue diamonds, even the slightest miscalculation can soften saturation or diminish the mesmerizing vibrancy that nature created over billions of years. The decision was ultimately made to fashion the stone into a pear shape, a silhouette celebrated for its elegance, fluidity, and ability to intensify color concentration while maximizing brilliance.
With each carefully placed facet, the blue deepened further, revealing what David Rosenberg would later describe as “a mesmerizing blue electric swimming pool.” The final result was extraordinary: a 5.10 carat Fancy Vivid Blue pear-shaped diamond alive with remarkable luminosity, transparency, and hypnotic movement.
Fashioned into a pear shape by master cutters
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The Masterpiece
The Luna Azul is regarded as one of the most extraordinary Fancy Vivid Blue diamond’s ever brought to the world of important jewelry. Its remarkable combination of vivid saturation, elegant pear shape, and exceptional clarity creates a gemstone of singular distinction — a diamond possessing both commanding presence and ethereal beauty.
The stone’s luminous electric blue glow appears almost endless, shifting effortlessly between brilliance and depth with every movement of light. Rare beyond measure, The Luna Azul belongs among the world’s most important natural blue diamonds.
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The Luna Azul — Toi et Moi
Designed by Master designer diamantaire David Rosenberg, an elegant expression of balance and eternal union, The Luna Azul is masterfully composed within a refined Toi et Moi setting beside a perfectly matched D color, Flawless pear-shaped diamond.
The pairing creates a breathtaking dialogue between icy colorless brilliance and the mesmerizing depth of vivid blue, two extraordinary diamonds united in harmonious contrast. Executed in platinum with architectural precision and timeless sophistication, the design celebrates both individuality and connection, transforming the composition into a modern masterpiece of haute joaillerie.
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A Blue Diamond Without Equal
The Luna Azul is among the rarest expressions of nature’s artistry, a gemstone born from extraordinary geological miracles and perfected through master craftsmanship.
A treasure destined for the world’s most distinguished collections, The Luna Azul is more than a diamond, it is a vision of eternal blue fire.
Sourced with discernment, designed with artistry, and presented exclusively by David Rosenberg.
5.10 carat · Fancy Vivid Blue · VVS2 · Pear
*Please note: Due to the exceptional rarity and significance of the featured diamond, the stated center stone weight(s) may be exact or approximate, preserving the discretion and exclusivity of these extraordinary gems.
Private Inquiry
The Luna Azul
Each iconic stone is offered through private appointment. Speak with an advisor to receive complete documentation, provenance, and viewing arrangements.
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