• 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

    1.19 carat Round diamond K SI1 Excellent

    $2,849 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.96 carat Cushion diamond G VS2

    $2,887 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond J VS2 Excellent

    $2,915 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.04 carat Radiant diamond J VVS1

    $2,920 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond F SI2 Excellent

    $2,955 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond I SI2 Excellent

    $2,957 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.02 carat Princess diamond H SI1

    $2,994 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Round diamond H VS2 Excellent

    $3,019 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.20 carat Round diamond I SI2 Excellent

    $3,023 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.20 carat Oval diamond H SI2 VeryGood

    $3,032 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Radiant diamond H SI1

    $3,045 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond H VVS1 Good

    $3,046 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond I SI2 Excellent

    $3,072 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.27 carat Radiant diamond J SI2

    $3,075 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.51 carat Radiant diamond J SI2

    $3,092 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.99 carat Heart diamond F SI1

    $3,095 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Round diamond G VS2 VeryGood

    $3,113 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Cushion diamond I VS1

    $3,119 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.06 carat Radiant diamond G SI1

    $3,128 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond I SI2 Excellent

    $3,156 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.08 carat Cushion diamond E SI2

    $3,171 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.09 carat Round diamond I SI2 Excellent

    $3,185 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond D SI1 VeryGood

    $3,202 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.20 carat Radiant diamond J SI1

    $3,207 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.02 carat Round diamond G VS1 Good

    $3,215 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Radiant diamond G SI1

    $3,244 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

    $3,248 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.07 carat Round diamond J SI1 Excellent

    $3,250 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Round diamond G VS1 VeryGood

    $3,256 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

    $3,279 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.82 carat Emerald diamond E VVS1

    $3,287 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.91 carat Princess diamond G VS1

    $3,295 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.62 carat Radiant diamond M VS2

    $3,300 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.14 carat Radiant diamond H VS2

    $3,307 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond E VS2 Good

    $3,324 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond G SI2 VeryGood

    $3,330 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.20 carat Round diamond K VVS1 Excellent

    $3,331 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.97 carat Round diamond E SI2 Excellent

    $3,331 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond H SI2 Excellent

    $3,351 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Radiant diamond H VS2

    $3,372 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Round diamond G VS2 Excellent

    $3,376 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.91 carat Round diamond F VS1 VeryGood

    $3,388 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Radiant diamond D VS1

    $3,392 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    0.96 carat Princess diamond I VVS2

    $3,394 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.12 carat Round diamond I SI2 Excellent

    $3,398 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.20 carat Round diamond H SI2 Excellent

    $3,401 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.02 carat Round diamond F SI2 Excellent

    $3,420 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond H SI2 Excellent

    $3,420 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond H SI2 VeryGood

    $3,425 USD Tax exc.
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  • Sold by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond G VS1 VeryGood

    $3,429 USD Tax exc.
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