• 14 days return

  • Exceptional value

  • Free shipping

  • Diamond expert team

The diamantaire store
Guy
Diamantaire since 1966
Member of the Diamond Exchange of New York

About the diamantaire seller


With more than 40 years of expertise in diamond-jewelry manufacturing, we have established a trusted name in diamonds.
We provide the highest quality of fine diamonds and diamond jewelry to satisfied customers around the world.

Our skilled artisans, state-of-the-art manufacturing factories and reputable distribution offices worldwide specialize in supplying, manufacturing and distributing certified diamonds of all shapes and clarities, ranging from 0.30 carats to 10 carats, and specializing in 0.50 carats to 3 carats.

Our family-run company is committed to maintaining stringent ethical and quality standards and a fully transparent diamond supply chain. Sourcing conflict-free rough diamonds from Africa, Russia and Canada, we use the latest innovative diamond technologies in our manufacturing to constantly develop new and exclusive jewelry lines.

Our dynamic company also offers both digital and online access to our expansive diamond inventory, including high-resolution photographs of each diamond.

This enables our customers to easily find, choose and order from our wide range of breathtaking diamonds and jewelry collections – anywhere, any time.

With overnight worldwide delivery, our unparalleled customer service prioritizes customer satisfaction.

At our company, we truly value our customers and not only meet - but exceed - all of your diamond needs.

View as

  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.41 carat Round diamond I VS2 Excellent

    $16,939 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Round diamond J IF Excellent

    $16,980 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.15 carat Round diamond J VS1 Excellent

    $17,126 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.51 carat Pear diamond Blue I1

    $17,410 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.07 carat Pear diamond L SI2

    $17,491 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Round diamond H VS2 VeryGood

    $17,698 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.03 carat Princess diamond H VS2

    $17,827 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.01 carat Oval diamond K SI2

    $17,846 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Round diamond H VVS2 VeryGood

    $18,029 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.02 carat Princess diamond G VS1

    $18,255 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.50 carat Round diamond J VVS2 Excellent

    $18,349 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.02 carat Round diamond I SI1 Fair

    $18,397 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.06 carat Round diamond F SI2 Excellent

    $18,547 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.18 carat Round diamond I VS2 Excellent

    $18,626 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.00 carat Round diamond G SI1 Good

    $18,633 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.58 carat Round diamond E VVS2 Excellent

    $18,770 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    4.02 carat Radiant diamond L SI2

    $18,955 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.00 carat Round diamond I VS1 Excellent

    $18,975 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.00 carat Round diamond H VS2 Excellent

    $19,110 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Round diamond H VVS2 Excellent

    $19,386 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.02 carat Oval diamond H SI1

    $19,573 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Round diamond D SI2 Excellent

    $19,597 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.20 carat Round diamond H VS1 Excellent

    $19,793 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.56 carat Round diamond H SI1 Excellent

    $19,935 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.00 carat Round diamond H VS1 VeryGood

    $20,100 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.07 carat Round diamond G VS2 Excellent

    $20,195 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.00 carat Radiant diamond H VS2

    $20,205 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Round diamond G VS2 VeryGood

    $20,430 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    4.10 carat Pear diamond J SI2

    $20,831 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Cushion diamond D VS2

    $21,044 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.51 carat Round diamond I VS1 Excellent

    $21,626 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Round diamond H VVS1 Excellent

    $21,783 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.04 carat Round diamond L SI1 Excellent

    $22,282 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Heart diamond E VS2

    $22,326 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.50 carat Round diamond H VS1 VeryGood

    $22,444 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.00 carat Round diamond H VS1 Excellent

    $22,620 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.04 carat Round diamond H VS1 VeryGood

    $22,643 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.00 carat Oval diamond G VS2

    $22,695 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.01 carat Round diamond I SI2 Excellent

    $22,831 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.02 carat Round diamond L VS2 Excellent

    $22,884 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.02 carat Pear diamond G VS2

    $22,921 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.01 carat Round diamond L VS1 VeryGood

    $23,413 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.03 carat Cushion diamond H VS1

    $24,085 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.20 carat Oval diamond K SI1

    $24,152 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.31 carat Round diamond K SI2 Excellent

    $24,155 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.50 carat Round diamond G VS2 VeryGood

    $24,375 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.51 carat Round diamond H VVS2 VeryGood

    $24,472 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.19 carat Round diamond K VS2 VeryGood

    $25,866 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    3.01 carat Round diamond I SI2 Excellent

    $26,081 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    2.05 carat Pear diamond D SI1

    $26,228 USD Tax exc.
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