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    Moissanite (MM to DEW) Chart

    How Moissanite is Measured for Size 

    How Moissanite is Measured for Size

    Moissanite is measured for size based on its length and width, rather than carat weight like diamonds. Since moissanite is approximately 10% lighter than a natural diamond, its size is expressed in millimeters rather than carats.

    Relating the two measurements is straightforward and simple. For example, a 6.5 mm moissanite round cut gemstone would be equivalent in size to a 1 carat diamond, although it would weigh less. Visually, they would appear identical. For instance, 6.5mm is equivalent to 1.0 carat.

    Do carats still apply to moissanites?

    To ensure ease of understanding for our clients, we mention the size of moissanites in carats, as it is the most familiar measurement. If you have a specific carat weight in mind, we will gladly assist you in converting it to the equivalent moissanite size. Our aim is to provide a seamless experience and help you find the perfect moissanite size that aligns with your preferences.

     

    Round mm size to carat size chart

    Moissanite Size Diamond Equivalent Weight (Dew)
    6.5mm 1.00ct
    7.5mm

    1.50ct

    8.0mm 2.0ct
    8.5mm 2.50ct
    9.0mm 3.0ct
    9.5mm 3.5ct
    10.0mm 4.00ct
    10.5mm 4.50ct
    11.0mm 5.00ct
    11.5mm 5.80ct

    Cushion mm size to carat size chart

    Moissanite Size Diamond Equivalent Weight (Dew)
    6.5mm 1.30ct
    7.0mm 1.70ct
    7.5mm 2.0ct
    8mm 2.40ct
    8.5mm 2.80ct
    9mm 3.30ct
    9.5mm 4.20ct
    10mm 5.0ct
    10.5mm 5.90ct

    Princess mm size to carat size chart

    Moissanite Size Diamond Equivalent Weight (Dew)
    6.5mm 1.70ct
    7.0mm 2.10ct
    7.5mm 2.30ct
    8mm 2.80ct
    8.5mm 3.60ct
    9mm 4.30ct
    10mm 5.70ct

    Oval mm size to carat size chart

    Moissanite Size Diamond Equivalent Weight (Dew)
    7x5mm 1.00ct
    8x6mm 1.50ct
    9x6mm 1.80ct
    9x7mm 2.10ct
    10x7mm 2.50ct
    10x7.5mm 2.80ct
    10x8mm 3.00ct
    11x9mm 4.20ct
    12x8mm 4.40ct
    13x9mm 5.50ct

    Pear mm size to carat size chart

    Moissanite Size Diamond Equivalent Weight (Dew)
    8x5mm 1.00ct
    9x6mm 1.50ct
    10x7mm 2.10ct
    012x8mm 3.60ct
    13x9mm 5.20ct

    Radiant mm size to carat size chart

    Moissanite Size Diamond Equivalent Weight (Dew)
    6x4mm 0.70ct
    7x5mm 1.20ct
    8x6mm 1.80ct
    9x7mm 2.70ct
    10x8mm 3.90ct
    11x9mm 5.30ct

    Emerald mm size to carat size chart

    Moissanite Size Diamond Equivalent Weight (Dew)
    7x5mm 1.00ct
    8x6mm 1.70ct
    9x7mm 2.50ct
    10x8mm 3.50ct
    11x9mm 5.20ct

    Marquise mm size to carat size chart

    Moissanite Size Diamond Equivalent Weight (Dew)
    10x5mm 1.0ct
    11x5.5mm 1.40ct
    12x6mm 1.80ct
    13x6.5mm 1.98ct
    14x7mm 2.80ct
    16x8mm 3.86ct

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    Moissy Fine Jewellery


    Moissy Fine Jewellery


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