Skip Menu
< Back to Bag

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.

Enter your email and we’ll send you a list of the items in your shopping bag.

Education new template


A classic cut that sparkles more brilliantly than all the rest

Anne Hathaway

Kwiat Diamond Stud Earrings

Charlize Theron

Kwiat Diamond Stud Earrings

January Jones

Kwiat Diamond Earrings and Necklaces Worn in the Hair



  • Round brilliant diamonds are the most classic of all of the diamond shapes
  • The cutting style of the round diamond has evolved over the last 150 years with the evolution of scientific study and technology. Today’s modern round diamond is called the round brilliant
  • The brilliant cut faceting pattern is made up of a series of triangular and kite shaped facets placed on the top and bottom of the diamond
  • This faceting pattern gives the modern round diamond its intense brilliance and fire
  • The GIA report for a round brilliant diamond will typically read “Round Brilliant” for the shape and cutting style.
  • Of all of the shapes, the cutting style of the round brilliant is most well-defined and fine quality cutters around the world will adhere to a relatively narrow set of angles and proportions when cutting the round brilliant shape.
  • The cut quality remains the most important quality element for a round brilliant
  • A poorly cut diamond can have an inconsistent or unattractive brilliance and be too deep and therefore small looking
  • The GIA assigns a Cut grade for round brilliant diamonds, the only shape to receive this grade
  • All Kwiat Tiara Cut Round diamonds receive the Excellent cut grade from the GIA. In fact they are always Triple Excellent (Excellent cut, polish and symmetry)
  • At Kwiat, we have the strictest set of standards in the world, and the GIA cut grade of Excellent is not enough to earn the Kwiat tiara designation. We also have strict standards for depth percentage, table percentage, angles and facet proportions

  • Round diamonds show their size well. In fact, Kwiat Tiara Cut Round diamonds will appear bigger and brighter than other round diamonds.


  • Round brilliant diamonds do not show color very readily as compared to other shapes
  • Round diamonds tend not to show much color when face up all the way through the J color range.
  • Sometimes when comparing round brilliant diamonds of different colors, people may perceive the higher color grade to be “brighter”
  • At Kwiat, we select diamonds that do not show obvious color for their respective color grade in order to ensure that our diamonds face up as beautifully as possible

  • Because of the brilliant cut faceting pattern, the sparkle of the round brilliant can often mask any internal inclusions.
  • The sweet spot of the clarity range for round brilliants is typically between VS1 and a good SI1, (as long as the SI1 is clean to the eye)
  • The occasional SI2 clarity diamond can be clean to the eye as well, although these are rare
  • At Kwiat, we select diamonds that are the best of that grade, and you can be assured that our diamonds do not show eye-visible inclusions.
  • In particular, Kwiat’s SI1 and SI2 clarity diamonds are carefully selected and will always be the very best of the grading range, clean to the eye

  • The “ratio” of a diamond is its length divided by its width. For a round or square shape, the ratio would be 1 and the higher the number, the more elongated the diamond will appear.

  • In order to achieve the Excellent cut grade, round brilliant diamonds are cut within a very tight depth percentage range between 59% and 62.9%
  • Kwiat Tiara Cut Round diamonds are cut to very specific parameters at the shallower end of this depth percentage range in order to maximize the size appearance and brightness of the diamond
  • Round brilliant diamonds with the Excellent cut grade that fall outside of Kwiat’s parameters for depth percentage and other metrics will look small for their size and will not be as brilliant as a Kwiat Tiara Cut Round diamond

  • Table sizes for round brilliant diamonds can range generally between 55% and 61%
  • Kwiat Tiara Cut Round diamonds are cut to a tighter range between 57% and 61%, for the perfect balance of brightness and fire
  • Round brilliant diamonds with table sizes outside of Kwiat’s parameters will look small for their size, may have a higher depth percentage, and will not be as brilliant as a Kwiat Tiara Cut Round diamond