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Diamond Size

Diamond Carat

Carat is often the first thing to come to mind when thinking about a diamond’s size. Size and carat weight are closely related but there are other factors in a diamond’s appearance. Cut and shape also play a role in whether the diamond appears visually larger or smaller than its actual carat weight.

Kwiat Standards

A properly cut diamond will not have too much weight in hidden areas. The added weight increases the cost without giving the diamond a larger appearance. At Kwiat, we cut our diamonds to keep the carat weight in the right places. Each gem has the widest possible diameter to appear larger than other diamonds of comparable carat weight. And because of their superior cut, our diamonds will appear whiter than their GIA color grade. We call this the Kwiat Tiara® Cut.

Kwiat diamonds

  • 5.1 - 5.3mm
    1/2 CARAT
    4.8 - 5.0mm
  • 5.8 - 6.0mm
    3/4 CARAT
    5.6 - 5.8mm
  • 6.4 - 6.6mm
    1 CARAT
    6.2 - 6.4mm
  • 7.4 - 7.6mm
    1 1/2 CARAT
    7.1 - 7.3mm
  • 8.1 - 8.3mm
    2 CARAT
    7.9 - 8.1mm

Other diamonds

Diamond Color and Clarity

Diamond Color

Diamonds are rated on a color scale developed by the GIA, the world’s premier diamond grading nonprofit. The color grading system is based on the alphabet, beginning with the letter D and running all the way through Z. A grade of D is the best possible grade a diamond can receive, which translates to an absence of color. Diamonds with this grade tend to be the most rare and valuable.

Diamond Clarity

Clarity refers to the presence of imperfections, known as inclusions, in the crystal structure of the diamond. Nearly all diamonds contain some sort of inclusion, as they are part of a diamond’s characteristics and structure. An inclusion within a diamond is natural, and on the higher end of the clarity scale, does not take away from its beauty.


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White Gold
Diamond Heart Pendant


Delicate and refined, our limited edition heart pendant crafted in white gold is designed with purpose. A single red ruby complements pavé diamond accents on the open heart shape.

18K white gold heart with matching chainPavé diamond setting | Single red ruby accent | 16” chain.21 TCW


Rose Gold
Diamond Heart Pendant


Graceful and elegant, our limited edition heart pendant crafted in rose gold is a gift to cherish. Shimmering pavé diamonds accent an open heart design suspended on a delicate chain to match.

18K rose gold heart with matching chain17” chain1.0 TCWPavé diamond setting



Our Philanthropic Partners

A portion of proceeds from each Kwiat diamond heart pendant purchase will benefit the American Heart Association and SIMON’S Heart.



The American Heart Association is working to ensure that everyone has an opportunity to live their best life. For too long, heart disease and stroke have stolen our precious moments. It’s time we fight back together and affirm that we’re more powerful than these diseases…because everyone has a reason to live a longer, healthier life.

SIMON’S Heart raises awareness about the warning signs and conditions that lead to sudden cardiac arrest and death in children.  In its effort to prevent sudden death, it has provided free heart screenings to over 15,000 students and authored and advocated for the Sudden Cardiac Arrest Prevention Act, a law that protects student athletes in twelve states.


Discover the Kwiat difference and our entire collection of jewelry. We invite you to visit our boutique located at 773 Madison Avenue in New York City or find a Kwiat Retail Partner near you