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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

Check out Diamond 101 to learn more
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.

Check out Diamond 101 to learn more

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Your Custom Engagement Ring

A BRILLIANT START

You’ve taken the first step in creating your dream ring. Our concierge will be in touch with you soon to guide you through the next steps.

In the meantime, get inspired by some designs we think you’ll love.

Shapes

Ring Style

Gemstone

Metals

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Didn’t Find What You Are Looking For?

Get in touch and we’ll create your dream jewelry, designed and crafted
just for you in our New York City workshop.

Schedule In-Store Appointment

Enjoy personalized guidance with one of our diamond experts.

REQUEST AN IN-PERSON VIEWING

Bridal Borrow™ Program

Get exclusive access to our collection of reserved
wedding day jewelry.

LEARN ABOUT OUR BRIDAL BORROW™ PROGRAM

Create Your Own Dream Ring

Looking for a one-of-a-kind style? Use our ring design tool to create the ring of your dreams.

DESIGN YOUR OWN ENGAGEMENT RING

Quick and Easy Financing Available

Pay for your order over 3, 6, or 12 months. Check your rate without leaving our site.

LEARN ABOUT 0% APR FINANCING

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

CONFLICT FREE & ETHICALLY SOURCED
We maintain the highest standards for diamond procurement.
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A DIAMOND YOU’LL ALWAYS LOVE
Trade in your center diamond for one of greater size and value.
LEARN MORE >

GIA GRADED
All Kwiat diamonds are graded by the GIA and come with a GIA report.
LEARN MORE >

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

116 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.

First Kwiat store on Canal Street in New York City, 1907

Today’s Kwiat flagship store on Madison Avenue in New York City

116 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


A DAILY DOSE OF BRILLIANCE

Multi-row huggies are the perfect earring for every day... a little extra diamond 💎 power never hurt anyone.

#diamondhuggie #diamondhoops

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Multi-row huggies are the perfect earring for every day... a little extra diamond 💎 power never hurt anyone. #diamondhuggie #diamondhoops

Popped into our Madison Avenue flagship to try on some essential accessories, just in time for tennis season. 🎾

#tennisbracelet #linebracelet

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Popped into our Madison Avenue flagship to try on some essential accessories, just in time for tennis season. 🎾 #tennisbracelet #linebracelet

Old European cut diamonds are charming and romantic, but they’re difficult to find with qualities that meet our standards. Our Fred Leighton Rounds feature precision-cut facets and consistent dimensions that reveal a bigger and brighter diamond. Like a family heirloom — but better.

#oldeuropeancut #oldeuropeancutdiamond

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Old European cut diamonds are charming and romantic, but they’re difficult to find with qualities that meet our standards. Our Fred Leighton Rounds feature precision-cut facets and consistent dimensions that reveal a bigger and brighter diamond. Like a family heirloom — but better. #oldeuropeancut #oldeuropeancutdiamond

The newest styles in our Starry Night collection highlight star-set diamonds that orbit the neck like a miniature twinkling galaxy. 💫

#diamondnecklace #neckmess

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The newest styles in our Starry Night collection highlight star-set diamonds that orbit the neck like a miniature twinkling galaxy. 💫 #diamondnecklace #neckmess

Consider color for your summer jewelry looks! Our Argyle collection offers timeless charm, blending vintage details with modern sophistication.

#diamondbangle #braceletstacks #diamondring

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Consider color for your summer jewelry looks! Our Argyle collection offers timeless charm, blending vintage details with modern sophistication. #diamondbangle #braceletstacks #diamondring

Natalie Portman is radiant at tonight’s SAG-AFTRA screening of “Lady In The Lake” in our diamond Orbit Huggies. ✨

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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

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Each ASHOKA diamond is uniquely cut with 62 precise facets, resulting in this dazzling prismatic effect. #ASHOKAdiamond #necklace #earrings
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ASK THE CONCIERGE

Our experts can answer all your questions about diamonds, help you choose a gift, or set up a virtual or in-person appointment.

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