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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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Love Stories Event Bridal LP

BRIDAL STYLING EVENT

Feast your eyes on brilliant ideas for the big day, featuring Kwiat diamonds and Maggie Sottero gowns. In partnership with Love Stories TV and the Platinum Guild.

MADE JUST FOR YOU

Unique rings, custom created
in New York City.

For more than 115 years, our family has been the trusted source for diamonds of superb quality, cut to the world’s highest standards. They form the centerpiece of bespoke engagement rings created according to your exact specifications. We invite you to meet with our experts to design the ring of your dreams — the setting that reflects your style and the diamond that embodies the brilliance of your love.

Natural diamonds, ethically sourced, conflict free

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DREAM TO REALITY IN 3 EASY STEPS

From your vision to your hand, with the help of our New York City experts.

Step 1

INSPIRATION
MEETS EXPERTISE

Visit our New York flagship and share your ideas with our experts, who will guide you through the process of designing your dream ring. Try on styles, explore diamonds, and get excited to see your ring come to life.

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Step 2

WE WORK OUR MAGIC

After your visit, our designers get started. You will be presented with hand-drawn renderings of each angle of your ring, true to color and scale. We welcome your feedback and will make changes to the design until we get it right — we are not happy until you are.

Step 3

YOUR RING BECOMES REALITY

In our New York City studio, we’ll create your one-of-a-kind ring with utmost attention to quality and craftsmanship. Prepare to be absolutely dazzled.

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EXCLUSIVELY AT KWIAT

Our signature Kwiat Tiara® Cut diamonds — distinctive, extraordinary, and only available at Kwiat.

Kwiat Cushion™

With an elegant, elongated silhouette, perfect outline, beveled edges, and rounded corners, the Kwiat Cushion is a true brilliant cut with more sparkle and fire. And, unlike most cushions, it looks bigger than a round brilliant diamond of the same weight.

VIEW KWIAT CUSHION ENGAGEMENT RINGS

ASHOKA® Diamond

The ASHOKA is a trademarked diamond cut that is as distinctive as it is beautiful. A unique arrangement of 62 facets creates a dazzling prismatic effect, giving the ASHOKA its fiery brilliance.

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Kwiat Round™

Our exclusive round brilliant diamond exceeds the GIA’s standards, with a superior cut and a diameter that is as wide as possible. The result: a Kwiat Round diamond looks bigger and brighter than others of comparable weight.

VIEW KWIAT ROUND ENGAGEMENT RINGS

Fred Leighton Round™

Our perfected version of an old European diamond has a consistent shape, precise dimensions, excellent polish and symmetry, a larger table, and a smaller culet. These considered updates retain the romance of an antique cut while making it look bigger and brighter.

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SUPERIOR QUALITY & CRAFTSMANSHIP
We adhere to the strictest standards with unsurpassed honesty and integrity.

CONFLICT FREE & ETHICALLY SOURCED
We maintain the highest standards for diamond procurement.

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From left to right: Cory, Greg, Lowell and Russell Kwiat

115 YEARS OF CRAFTSMANSHIP AND INTEGRITY

In 1907, Sam Kwiat started in the diamond jewelry business. He never imagined that his passion would take hold for generations to come. Together with his son, David, they grew a small family shop into a diamond legacy. More than a century later, the Kwiat family continues to design and craft the most exquisite diamond jewelry.

1907First Kwiat Store on Canal St. in New York

2021Current Kwiat Flagship Store in New York, Madison Avenue

115 YEARS OF CRAFTSMANSHIP AND INTEGRITY

In 1907, Sam Kwiat started in the diamond jewelry business. He never imagined that his passion would take hold for generations to come. Together with his son, David, they grew a small family shop into a diamond legacy. More than a century later, the Kwiat family continues to design and craft the most exquisite diamond jewelry.

CUSTOMERS ARE FAMILY

Our intention is to share our knowledge and expertise as we welcome you into the Kwiat family. An emphasis is placed on providing advice that fits your situation, with personal recommendations for selecting the right diamond jewelry for any of your special occasions. We take pride in our name and what it has come to stand for—diamond jewelry crafted with honesty and integrity. This is why customers keep coming back, generation after generation.

SEE OUR HISTORY TIMELINE

ASK THE CONCIERGE

Our experts are standing by to help you with any questions you might have.
Reach out if you need help to better understand diamonds quality and colors, looking for styling ideas and gifting suggestions, or would like to set up virtual and in-person viewings.

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