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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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A singular love, a unique diamond, a ring for only you. We designed this setting to celebrate a Kwiat diamond—and the one who wears it. A graceful U-shaped basket embraces the stone, gently dipping low on the sides to allow more light to enter.



    Free Insured Shipping & Returns

    Kwiat offers complimentary two-day insured FedEx shipping on all orders within the U.S. Shipments to Alaska, Hawaii, U.S. territories, and APF/FPO/DPO addresses take additional time. For orders outside these areas, please email [email protected] to make arrangements. Learn more >


    If you are not completely satisfied with your purchase, you may receive a full refund within 30 days of purchase date. Kwiat will accept merchandise for return only in unused, unaltered, and salable condition. Returns must be made in the original packaging with the Kwiat shipping tag attached. Kwiat cannot accept returns of items that have had the Kwiat shipping tag removed. Kwiat cannot accept returns of engraved items or items that show signs of wear. Special orders and custom sized pieces may be exchanged. Kwiat reserves the right to refuse any returns. Learn more >

    The Kwiat Certificate of Authenticity

    All Kwiat jewelry is accompanied by the Kwiat Certificate of Authenticity, documenting the piece’s characteristics and purchase date. The Kwiat family signs each certificate, ensuring that the jewelry meets our high standards of excellence. Each jewelry style is also stamped with the Kwiat Tiara maker’s mark, ensuring the authenticity of the piece. Learn more >

    Price Match Guarantee

    If you are considering a purchase from and you see the exact same style being sold at another online retailer for less, we will match the price. If, within 30 days of your purchase of a Kwiat item, you find the exact same style being sold online for less, we will match the price by refunding you the difference. Learn more >


    Kwiat will perform free resizing for rings purchased from Kwiat within 30 days of the date of purchase. Our ability to resize the ring depends on the ring style and the size increase or decrease needed. Learn more >

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    Ring Settings



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