• 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

    1.51 carat Oval diamond J VS2

    $7,495 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.81 carat Round diamond K VVS2 Very good

    $7,528 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.53 carat Round diamond J SI2 Good

    $7,628 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Pear diamond F SI2

    $7,635 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    2.05 carat Round diamond Yellow VVS2

    $7,676 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond K VVS2 Excellent

    $7,709 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.71 carat Heart diamond F SI2

    $7,719 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond I VS1 Very good

    $7,734 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Cushion diamond H VS2

    $7,743 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond H SI2 Very good

    $7,757 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond I SI2 Excellent

    $7,844 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    2.52 carat Cushion diamond Yellow VS2

    $7,862 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond D VVS2 Very good

    $7,879 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.60 carat Cushion diamond D SI1

    $7,882 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.90 carat Cushion diamond J SI1

    $7,895 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.63 carat Round diamond F SI2 Excellent

    $7,916 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond J VVS1 Very good

    $8,065 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.81 carat Heart diamond I SI2

    $8,082 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.51 carat Cushion diamond G VS2

    $8,084 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.51 carat Round diamond L VVS2 Very good

    $8,091 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.72 carat Heart diamond G SI2

    $8,119 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.70 carat Princess diamond H SI1

    $8,123 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    2.19 carat Pear diamond Yellow SI1

    $8,196 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.80 carat Oval diamond K VVS2

    $8,216 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Radiant diamond F SI2

    $8,310 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.70 carat Heart diamond G SI2

    $8,327 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    3.01 carat Heart diamond M SI2

    $8,383 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond H VS2 Very good

    $8,400 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond J VS1 Excellent

    $8,425 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.70 carat Round diamond J SI1 Excellent

    $8,439 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.51 carat Round diamond H SI2 Excellent

    $8,440 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond F IF Good

    $8,470 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.00 carat Round diamond F VVS1 Very good

    $8,514 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    2.00 carat Round diamond J SI2 Excellent

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

    1.58 carat Round diamond J VS1 Excellent

    $8,590 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Princess diamond H VS1

    $8,607 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.61 carat Princess diamond G SI1

    $8,651 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.61 carat Cushion diamond G SI1

    $8,651 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.51 carat Princess diamond H VS1

    $8,664 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.23 carat Round diamond E VVS2 Very good

    $8,734 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond K VVS2 Excellent

    $8,929 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.70 carat Pear diamond E SI2

    $8,972 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Round diamond I VS1 Excellent

    $8,994 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.20 carat Round diamond E VVS2 Excellent

    $9,079 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.70 carat Round diamond J VVS2 Excellent

    $9,171 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.71 carat Round diamond J VS1 Excellent

    $9,235 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.70 carat Cushion diamond E SI1

    $9,332 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.01 carat Round diamond D VVS1 Excellent

    $9,383 USD
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  • Sell by Guy
    Diamantaire since 1966, Bourse of New York

    1.50 carat Pear diamond D SI2

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

    1.58 carat Round diamond H VS2 Excellent

    $9,666 USD
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