• 14 days return

  • 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.

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

    1.01 carat Oval diamond E I1 Very good

    $1,908 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.71 carat Round diamond J VS1 Excellent

    $1,938 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.36 carat Cushion diamond Yellow SI1

    $1,948 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.72 carat Round diamond G IF Excellent

    $1,956 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.07 carat Round diamond H I1 Very good

    $2,016 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Cushion diamond I SI2

    $2,017 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.16 carat Round diamond M SI2 Excellent

    $2,020 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.70 carat Round diamond E SI2 Very good

    $2,020 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.08 carat Cushion diamond K I1

    $2,026 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.54 carat Round diamond G VS1 Excellent

    $2,026 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.54 carat Round diamond G VS1 Excellent

    $2,026 USD
    View details
  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.04 carat Round diamond M SI1 Very good

    $2,041 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Radiant diamond K VS2

    $2,042 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.8 carat Heart diamond D VS2

    $2,055 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Round diamond K VS2 Excellent

    $2,056 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.04 carat Radiant diamond J VVS1

    $2,097 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.71 carat Round diamond E SI1 Excellent

    $2,109 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.25 carat Radiant diamond Yellow SI1

    $2,141 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.9 carat Radiant diamond I VS2

    $2,143 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.81 carat Emerald diamond D VS1

    $2,144 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.81 carat Oval diamond H VS2

    $2,150 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.04 carat Cushion diamond K SI1

    $2,159 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Cushion diamond Yellow SI1

    $2,161 USD
    View details
  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.72 carat Emerald diamond D VS1

    $2,176 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.05 carat Oval diamond G I1

    $2,213 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Round diamond G I1 Good

    $2,232 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.15 carat Oval diamond F I1

    $2,236 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Round diamond G SI1 Good

    $2,285 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.87 carat Emerald diamond D VS2

    $2,319 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.93 carat Pear diamond G SI2

    $2,332 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.80 carat Round diamond J VS1 Very good

    $2,333 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Pear diamond I SI2

    $2,368 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Triangle diamond E SI2

    $2,371 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.02 carat Princess diamond H SI2

    $2,375 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Oval diamond H SI2

    $2,393 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Radiant diamond E SI2

    $2,473 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Round diamond D I1 Very good

    $2,510 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.9 carat Princess diamond H VS1

    $2,524 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond F SI2 Good

    $2,603 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Round diamond H SI2 Excellent

    $2,627 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.96 carat Cushion diamond G VS2

    $2,641 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.91 carat Emerald diamond G SI1

    $2,663 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.17 carat Heart diamond H SI2

    $2,673 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.13 carat Oval diamond K VS2

    $2,676 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.92 carat Oval diamond H SI1

    $2,693 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Princess diamond K VS1

    $2,730 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Oval diamond J VS1

    $2,741 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.17 carat Cushion diamond I VS1

    $2,757 USD
    View details
  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.51 carat Radiant diamond J SI2

    $2,809 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond I SI2 Excellent

    $2,821 USD
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