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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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THE WORLD’S MOST PERSONAL DIAMOND

Trace the journey from rough stone to polished perfection. Each Kwiat Tiara Diamond®, crafted with unparalleled precision, transforms moments into sparkling, everlasting memories.

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BROWSE ENGAGEMENT RINGS

Kwiat Round

A whiter, brighter, and larger looking round diamond, cut to the world’s highest standards. Simply brilliant.

LEARN MORE ABOUT KWIAT ROUND

ASHOKA®

This remarkable stone is available in the U.S. only at Kwiat. Its unique faceting pattern gives it a dazzling prismatic effect and makes it appear 30% to 50% larger than other diamonds of the same carat weight.

LEARN MORE ABOUT ASHOKA

Fred Leighton Round

We evolved a beloved cut from the 1890s, using modern technology to create consistent dimensions that make the diamond look bigger and brighter. It has all the charm of an antique, and all the precision of a contemporary cut.

LEARN MORE ABOUT FRED LEIGHTON ROUND

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.

LEARN MORE ABOUT KWIAT CUSHION

Kwiat Oval

Oval diamonds have an elongated silhouette that makes them appear larger than their carat weight. Kwiat Oval surpasses the typical, with a perfect shape, ideal length-to-width ratio, and a unique faceting pattern.

LEARN MORE ABOUT KWIAT OVAL

Kwiat Emerald Cut

Popularized during the Art Deco era, the emerald cut has clean lines and parallel step cut facets that create a “hall of mirrors” effect. We improved on the classic to create a modern emerald cut with pure brightness and fire.

LEARN MORE ABOUT KWIAT EMERALD CUT

Kwiat Radiant

Radiant cuts are for those who love a diamond with a rectangular shape and more sparkle. Kwiat Radiant offers the maximum brilliance, with a unique combination of facets that creates pure brightness throughout the diamond.

LEARN MORE ABOUT KWIAT RADIANT

Conflict free and ethically
sourced diamonds

Superior quality and
craftsmanship

GIA graded and certified
diamonds

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Kwiat diamond

East-West Kwiat Cushion™ Diamond Engagement Ring with Pavé

“I can’t stop smiling at the sparkle.”

Megan the concierge and her team were so helpful throughout our engagement ring selection process. They explained what made each cut so special and eventually we landed on a Kwiat cushion cut. Not only is it a little bit different from the usual shapes I see, but I can’t stop smiling at the sparkle. It’s just perfect and I couldn’t be happier.

-ADDISON

Engagement Ring with Emerald Cut Diamond and Side Stones

“Thank you for making it so easy.”

Megan and the Kwiat family were amazing as I was planning the proposal to my now fiancée. I knew what she wanted (her hints were less than subtle!) but knowing it was being created in NYC where we both met, made it so much more meaningful and I even had the opportunity to get a sneak peek during the process. Thank you for making it so easy.

-MICHAEL

Starry Night Bracelet with Alternating Diamonds

“She loved it!”

I wanted to gift my wife something after the birth of our first child but wasn’t sure what. As a new dad in the midst of the pandemic, I didn’t want to take any chances, so set up a virtual appointment with Kwiat. I don’t think the experience could have been much better had I been there in person as they had done so much preparation for our call. Making the decision was the hardest part, but I was assured that if she didn’t like it we could return it. That wasn’t something we needed to worry about. She loved it! Thank you Kwiat for always making me look good!

-SCOTT

BUILDING A
BRILLIANT LEGACY

Kwiat is a family business with a heritage of service, quality, and integrity. Guided by these values, Kwiat has flourished, blossoming like the family name, which means “flower” in Polish.

In 1907, Sam Kwiat opened a diamond shop in New York City; he was joined by his son, David, in 1933. Today, Kwiat has grown to become a renowned brand led by David’s son, Lowell, and his grandsons, Greg, Cory, and Russell. Like their forebears, they have perfected the science and art of cutting diamonds. And they continue the tradition of trust and authority that Sam Kwiat established more than a century ago.

CUSTOMERS ARE FAMILY

As we welcome you into the Kwiat family, we’ll share our knowledge and expertise. We will gladly provide advice that suits your situation and budget, with personal recommendations for the perfect diamond jewelry for any special occasion. We take pride in our name and what it has come to stand for. And we are grateful that customers and their families return to us again and again, generation after generation.

SEE OUR HISTORY TIMELINE


A DAILY DOSE OF BRILLIANCE

Natalie Portman is radiant at tonight’s SAG-AFTRA screening of “Lady In The Lake” in our diamond Orbit Huggies. ✨
Each ASHOKA diamond is uniquely cut with 62 precise facets, resulting in this dazzling prismatic effect.

#ASHOKAdiamond #necklace #earrings
Introducing the newest bangles from our Cobblestone ASHOKA, Ribbons and Starry Starry Night collections in 18K white gold and diamonds. 💎

#ASHOKAdiamond #diamondbangle
All these options for multi-row rings have us wishing we had more hands. 🐙 And just think of the bracelet stacks we could create!

#diamondring #ringsofinstagram
Spot the Sunburst bracelet! 🔎☀️ Our illusion setting cleverly enhances the appearance of smaller diamonds, surrounding them with rays of 18K gold that resemble their facets. Drop your guess in the comments below!

#diamondlinebracelet
Watch as vision becomes reality in this custom project featuring a 3.96ct fancy yellow pear shape diamond. DM us to begin creating your own unique masterpiece. 

#customjewelry #diamondring #pearshapediamond
Light up your night with these dazzling sapphire and diamond bangles. 🎆 Happy Fourth of July!

#4thofjuly