• 14 days return

  • Free shipping

  • Diamond expert team

toto
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

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

    1.05 carat Cushion diamond Yellow SI1

    $2,103 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.05 carat Oval diamond G I1

    $2,111 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.32 carat Cushion diamond Yellow SI2

    $2,114 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.33 carat Cushion diamond Yellow VS2

    $2,130 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Cushion diamond I SI2

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

    1.01 carat Radiant diamond E SI2

    $2,152 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.72 carat Round diamond G IF Excellent

    $2,155 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.71 carat Round diamond D VS2 Very good

    $2,172 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.36 carat Cushion diamond Yellow SI1

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

    0.54 carat Round diamond G VS1 Excellent

    $2,238 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.54 carat Round diamond G VS1 Excellent

    $2,238 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.16 carat Round diamond M SI2 Excellent

    $2,250 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Oval diamond E I1 Very good

    $2,252 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.80 carat Heart diamond D VS2

    $2,257 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Radiant diamond I VS2

    $2,293 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.03 carat Cushion diamond H SI2

    $2,304 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Princess diamond K VS1

    $2,323 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.70 carat Round diamond H VVS1 Excellent

    $2,345 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.81 carat Emerald diamond D VS1

    $2,348 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.91 carat Emerald diamond G SI1

    $2,356 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond D I1 Very good

    $2,376 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Radiant diamond Yellow VS2

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

    0.90 carat Round diamond G SI1 Good

    $2,415 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.04 carat Cushion diamond K SI1

    $2,415 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Cushion diamond Yellow SI1

    $2,416 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.72 carat Emerald diamond D VS1

    $2,430 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Round diamond H VS1 Very good

    $2,436 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.29 carat Round diamond M VVS2 Excellent

    $2,440 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.93 carat Pear diamond G SI2

    $2,448 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.15 carat Oval diamond F I1

    $2,471 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.90 carat Princess diamond H VS1

    $2,501 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.87 carat Emerald diamond D VS2

    $2,549 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.13 carat Princess diamond E I1

    $2,555 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Triangle diamond E SI2

    $2,597 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Pear diamond I SI2

    $2,619 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.13 carat Oval diamond K VS2

    $2,631 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Oval diamond H SI2

    $2,637 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.02 carat Princess diamond H SI2

    $2,665 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.10 carat Round diamond H SI2 Very good

    $2,670 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.20 carat Round diamond L SI1 Very good

    $2,672 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond I SI2 Good

    $2,714 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Cushion diamond G SI2

    $2,734 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Radiant diamond J VS2

    $2,743 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond F SI2 Good

    $2,753 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.92 carat Oval diamond H SI1

    $2,766 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond G SI2 Excellent

    $2,789 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.19 carat Round diamond K SI1 Excellent

    $2,860 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond H SI2 Excellent

    $2,861 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.96 carat Cushion diamond G VS2

    $2,900 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.04 carat Radiant diamond J VVS1

    $2,920 USD
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