• 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

    0.91 carat Radiant diamond G VS1

    $3,437 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Emerald diamond F SI1

    $3,463 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.10 carat Round diamond J SI1 Excellent

    $3,464 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.28 carat Round diamond K VS1 Excellent

    $3,496 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Oval diamond D SI2

    $3,502 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond H SI1 VeryGood

    $3,508 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond G SI2 Excellent

    $3,510 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.22 carat Pear diamond H SI2

    $3,536 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond J VVS1 VeryGood

    $3,537 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.04 carat Radiant diamond I VS1

    $3,557 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Radiant diamond D SI1

    $3,593 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Princess diamond G VS1

    $3,611 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond F VS2 VeryGood

    $3,620 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond G SI2 Excellent

    $3,620 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond I SI1 Excellent

    $3,643 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Emerald diamond G VVS1

    $3,644 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Oval diamond G I1

    $3,666 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond G SI1 Excellent

    $3,707 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond G SI1 Excellent

    $3,707 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.62 carat Cushion diamond L SI1

    $3,710 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond H VS2 Good

    $3,720 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond G VS1 VeryGood

    $3,720 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond G VS1 Excellent

    $3,720 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Round diamond G VS1 Excellent

    $3,720 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.95 carat Princess diamond G VS1

    $3,733 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.29 carat Cushion diamond F SI2

    $3,734 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond I VS2 VeryGood

    $3,743 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Cushion diamond D SI1

    $3,750 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.05 carat Radiant diamond Yellow SI2

    $3,756 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond I SI1 Excellent

    $3,761 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.05 carat Round diamond I SI1 Excellent

    $3,784 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond E VS2 VeryGood

    $3,788 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond E VS2 VeryGood

    $3,788 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond G VS1 VeryGood

    $3,801 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.03 carat Oval diamond D SI2

    $3,811 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.20 carat Round diamond J VS1 Excellent

    $3,814 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.10 carat Oval diamond Yellow SI2

    $3,814 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.51 carat Radiant diamond J SI2

    $3,885 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.05 carat Round diamond G VS1 Excellent

    $3,902 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.02 carat Round diamond H SI1 Excellent

    $3,903 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Oval diamond K SI2

    $3,925 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Cushion diamond H VS2

    $3,930 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.20 carat Round diamond J VS1 Excellent

    $3,932 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.10 carat Round diamond G SI2 Excellent

    $3,936 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.13 carat Round diamond H VS2 Excellent

    $3,950 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.11 carat Round diamond I SI1 Excellent

    $3,976 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond E VS2 Excellent

    $4,008 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond H VVS2 VeryGood

    $4,008 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond H VS2 VeryGood

    $4,008 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Cushion diamond F SI1

    $4,038 USD Tax exc.
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