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Craft Your Unique Story:
From Rough Diamond to Personal Masterpiece

Choosing an engagement ring should be fun, meaningful, and personal. And it’s even more so when you experience Mine to Shine, choosing your own ethically mined rough diamond and following its journey to the ring of your dreams.

We’re here to help. Simply answer a few quick questions so we can guide you.
Let’s start with shape
All Kwiat Tiara Diamonds™ are cut to perfect standards to look bigger and brighter than others of the same carat weight.

Choose your favorite(s) below.
Now, let’s talk size
Kwiat Tiara Diamonds are perfectly cut to look bigger and more brilliant, no matter the carat weight.
Major brilliance at every price
No matter how much you plan to spend, we promise to give you the very best cut diamond with ultimate sparkle and size appearance.
Timing matters
When would you like to propose or receive the ring? This will help us select the best options for your timeline.
The search is on!
Tell us where are you in the process so we can make your experience as efficient as possible.
How did you hear about Kwiat?
Let’s get serious
If you’d like personal assistance, our concierge, Megan, can get in touch. If you’d prefer to learn more about how to choose the most beautiful diamond, we’ll share our exclusive four-part email guide.
Continue your Mine to Shine journey with us
Our Kwiat concierge will be in touch to discuss Mine to Shine in detail, ensuring it aligns perfectly with your preferences.
Share your email for mine to shine details
Be part of something truly unique. Share your email, and we'll send you details about Mine to Shine – a program where your ring will be as one-of-a-kind as your love story.
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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Please note, we are unable to reserve these pieces, so shop now to make them yours.

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Kwiat Colombian Emeralds




Emeralds have been among the most sought-after gemstones on Earth for more than 4000 years, and the incomparable quality of Colombian emeralds has been known for centuries. These vivid dark green specimens are quite rare and can sometimes cost even more than diamonds of the same size.


Since ancient times, emeralds have been mined in Colombia and prized among royalty. Other countries, including Zambia, Zimbabwe, and Brazil are also sources for emeralds, but Colombian stones possess the deepest color. At Kwiat, we sustainably and ethically source our Colombian emeralds from the Muzo and Chivor mines, renowned for the unrivaled purity and beauty of their stones.


An emerald’s value is largely based on its color, which is determined by its hue, tone, and saturation. Kwiat carefully chooses stones that meet the highest standards of these measurements. Although some inclusions are to be expected—in fact, emerald inclusions are considered so characteristic as to have earned their own name, jardin (garden in French)—we opt for stones with higher transparency and fewer inclusions.

The step cut technique developed for the emerald is so emblematic of the gemstone that it’s known as the emerald cut, even when applied to diamonds. This cut is especially good at making the most of an emerald’s color and brilliance, conveying a geometric elegance beloved by connoisseurs. Kwiat also fashions emeralds as cushion, oval and pear shapes, all of which make ideal center stones in engagement rings, pendants, and earrings.


As mentioned above, although emerald inclusions are normal, a rich green specimen with few imperfections is exceptionally rare. Kwiat emeralds are never treated with colored oil or polymer fillers, an unacceptable practice used by some less reputable jewelers to disguise inclusions.


Kwiat’s brilliant diamonds and elegant designs are best appreciated in person. We welcome you to visit at your convenience or make an appointment with a Diamond Concierge, who will create a customized experience just for you.

New York City

773 Madison Avenue
(On the corner of East 66 Street)

Mon – Sat: 10:30AM – 6PM

The Wynn in Las Vegas

3131 South Las Vegas

Mon – Thurs: 10AM – 7PM | Fri – Sun: 10AM – 10PM


We work with known and trusted jewelers all over the country so that you can preview Kwiat jewelry at locations near you. Click below to find your closest jeweler.



Here are a just a few things our experts can help you with:

  • Styling ideas and gifting suggestions
  • Diamond education and how to prioritize the 4Cs
  • Setting up virtual and in-person viewings