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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.


We’re standing by to answer your questions.

Please note, we are unable to reserve these pieces, so shop now to make them yours.

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The Kwiat Mother’s Day Gift Guide

Perfect Gifts for Mother


From the Comfort of Your Home
Free Shipping, Free Returns

For this Mother’s Day, we have partnered with White Plains Hospital in New York in an effort to continue much needed support of healthcare workers fighting the COVID-19 pandemic on the front lines. A portion of proceeds from the sale of every style of jewelry sold on will be donated to White Plains Hospital. For each style, we’ll help you understand the immediate impact of your support, including details on how much will be donated to WPH, as well as what that translates to in terms of supplies needed most urgently.

Kwiat In Support of White Plains Hospital


Classic, Refined, Elegant
Three-prong diamond studs bring out a refined finish in every look, and our essential solitaire pendant adds an extra sparkle when going out. You can’t go wrong with a classic.

Holiday Gifts


We know how overwhelming the search for the perfect gift can be. So, why do it alone? Kwiat diamond experts are here to help you find the perfect gift for Mother’s Day.



A selection of diamond jewelry for those who dare to stand out. Shop our favorite trending styles.


Every legacy starts with a moment. For Shirley Kwiat, that moment was when she received an exquisite diamond necklace from her husband David, showcasing her husband’s passion: fancy shape diamonds in a graceful floral design.


The path to brilliance is paved with diamonds. These sleek pieces are a modern twist on a classic design, with smooth, sensual gold highlighted by perfectly-placed stones.


In this collection, diamond pavé halos and streamlined bezel settings in 18K white gold emphasize the beauty of exquisite fancy shape and round cut diamonds.


Our passion for the finest gemstones is excited anew by emeralds of exceptional color and quality. Unearthed in the mines of Colombia, they meet our strict standards for ethical sourcing.