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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 Kwiat Tiara® Cut is our proprietary diamond cutting technique that maximizes size, brilliance and scintillation. Kwiat studs are guaranteed to:

  • Appear larger than round brilliant diamonds of the same carat weight
  • Shine brighter than the rest because of our perfected faceting patterns
  • Sparkle more vividly as the diamond moves


Reaching the perfect balance of undeniable brilliance and wearability is a balance of art and science – a design that has been been perfected over our 110 year history. Our Tiara Cut essentials are designed in our signature three prong setting, allowing them to:

  • Appear light and airy, creating a floating effect
  • Sit closer to the skin and maximize comfort
  • Hold securely in place, minimizing the metal while maximizing the brilliance of the diamond


For more than a century, we have helped families celebrate their most special occasions and milestones with stunning diamond jewelry. Our promise is to continue that tradition with you.

  • Trade up your Kwiat Tiara® round brilliant diamonds for value towards a diamond with greater carat weight
  • Receive complimentary jewelry cleaning and sizing
  • Free insurance appraisals for all purchases