• 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

    0.28 carat Marquise diamond J SI2

    $312 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.35 carat Round diamond K IF VeryGood

    $447 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.41 carat Radiant diamond D I1

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

    0.40 carat Round diamond Yellow SI1 VeryGood

    $477 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.39 carat Princess diamond I VS2

    $480 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.40 carat Princess diamond I SI1

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

    0.41 carat Round diamond H SI2 Excellent

    $509 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.40 carat Round diamond H SI2 VeryGood

    $515 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.50 carat Round diamond G I1 Excellent

    $520 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.61 carat Radiant diamond Yellow I1

    $546 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.56 carat Round diamond G I1 Excellent

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

    0.46 carat Round diamond E SI2 VeryGood

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

    0.51 carat Princess diamond G I1

    $584 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.65 carat Pear diamond M SI1

    $589 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.35 carat Emerald diamond E IF

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

    0.40 carat Round diamond G VS2 Good

    $642 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.43 carat Princess diamond H SI1

    $648 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.45 carat Princess diamond F SI1

    $652 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.37 carat Round diamond D SI1 Excellent

    $653 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.41 carat Round diamond G VS2 Good

    $656 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.61 carat Round diamond F I1 Good

    $657 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.40 carat Round diamond G VS2 VeryGood

    $663 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.46 carat Emerald diamond J VS1

    $679 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.51 carat Pear diamond D I1

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

    0.68 carat Radiant diamond M SI1

    $715 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.57 carat Pear diamond I SI2

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

    0.51 carat Emerald diamond I SI2

    $766 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.50 carat Marquise diamond I SI1

    $782 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.40 carat Round diamond E SI1 Good

    $786 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.70 carat Radiant diamond M SI2

    $792 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.41 carat Round diamond H IF VeryGood

    $800 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.41 carat Emerald diamond E VVS2

    $804 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.70 carat Radiant diamond I I1

    $825 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.70 carat Pear diamond L SI2

    $825 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.57 carat Round diamond H SI2 Excellent

    $833 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.56 carat Pear diamond E SI2

    $836 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.51 carat Emerald diamond J VVS1

    $848 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.62 carat Princess diamond I SI2

    $851 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.71 carat Cushion diamond M VS2

    $862 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.59 carat Emerald diamond G SI1

    $882 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.50 carat Round diamond I VS1 Excellent

    $893 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.72 carat Emerald diamond L SI1

    $898 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.51 carat Pear diamond F SI2

    $911 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.63 carat Round diamond G SI2 Excellent

    $920 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.70 carat Princess diamond M VS2

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

    0.50 carat Cushion diamond I VVS2

    $938 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.71 carat Radiant diamond I SI2

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

    0.51 carat Cushion diamond H VVS2

    $977 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.40 carat Round diamond E VS2 Good

    $979 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.56 carat Emerald diamond J VVS1

    $1,000 USD Tax exc.
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