• Direct to diamantaires

  • Amazing value

  • 100% Ethically sourced

  • Diamond expert guidance

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

    1.5 carat Pear diamond H SI2

    $8,039 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.7 carat Pear diamond E SI2

    $8,103 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.90 carat Radiant diamond H SI2

    $8,116 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.5 carat Round diamond I VS1 Excellent

    $8,175 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.80 carat Oval diamond K VVS2

    $8,184 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    0.9 carat Round diamond G VVS2 Excellent

    $8,209 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.5 carat Round diamond J VVS1 Very good

    $8,230 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.12 carat Round diamond H SI1 Excellent

    $8,260 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.51 carat Round diamond G SI2 Excellent

    $8,270 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.7 carat Round diamond J VVS2 Excellent

    $8,337 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.5 carat Round diamond K VVS2 Excellent

    $8,361 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.71 carat Round diamond J VS1 Excellent

    $8,395 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.53 carat Round diamond H VS2 Excellent

    $8,395 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond F IF Good

    $8,526 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.5 carat Round diamond H SI2 Very good

    $8,623 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.61 carat Cushion diamond G SI1

    $8,715 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.7 carat Princess diamond J SI2

    $8,784 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.5 carat Round diamond H VS2 Very good

    $8,807 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Round diamond F VS1 Excellent

    $8,810 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    2.09 carat Round diamond F I1 Very good

    $8,810 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Oval diamond K SI1

    $8,848 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    3.01 carat Heart diamond M SI2

    $8,860 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Round diamond E VS1 Very good

    $8,888 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    2.2 carat Oval diamond K VS2

    $8,896 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Round diamond G VS1 Very good

    $8,913 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    2 carat Round diamond I SI2 Very good

    $8,931 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.71 carat Cushion diamond I SI2

    $8,946 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.5 carat Round diamond I SI1 Excellent

    $9,026 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.23 carat Round diamond E VVS2 Very good

    $9,128 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.73 carat Round diamond L VVS1 Excellent

    $9,298 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond H VS2 Excellent

    $9,299 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.71 carat Emerald diamond I SI2

    $9,323 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.7 carat Oval diamond H SI2

    $9,405 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Round diamond F VS2 Excellent

    $9,406 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond H SI1 Excellent

    $9,468 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.2 carat Round diamond I VS2 Excellent

    $9,489 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.7 carat Cushion diamond I SI2

    $9,537 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.5 carat Round diamond J VS1 Excellent

    $9,572 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.1 carat Round diamond H VS2 Excellent

    $9,582 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.29 carat Round diamond I VS2 Excellent

    $9,631 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    2.01 carat Radiant diamond H SI2

    $9,643 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.8 carat Round diamond L VVS1 Very good

    $9,671 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.7 carat Cushion diamond H SI2

    $9,674 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.61 carat Princess diamond G SI1

    $9,693 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.05 carat Round diamond G VVS2 Excellent

    $9,700 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1 carat Round diamond F VVS1 Very good

    $9,771 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.7 carat Princess diamond I SI2

    $9,844 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.2 carat Round diamond E VVS2 Excellent

    $9,847 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.5 carat Round diamond G VS2 Very good

    $9,892 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.9 carat Cushion diamond J SI1

    $9,938 USD
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