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    Diamond Weight
    Calculator

    Use our Diamond Weight Calculator to estimate what your loose diamonds could potentially be worth.

    Diamond Weight
    Calculator

    Use our Diamond Weight Calculator to estimate what your loose diamonds could potentially be worth.

    Step 1: Your Diamond Shape

    Select the shape of your largest diamond below:

    Step 2: Your Diamond Dimensions

    This will be the same number for the widest point for round diamonds.
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    Diamond Diagram
    Diamond Carat Size Chart

    DOWNLOAD OUR CHART

    Diamond Carat Size Chart

    Download our Free Diamond Carat Size Chart to see how diamonds of different shapes and different carat weights look from the top down.

    Print the chart to compare your diamond and see what carat weight it is.

    Diamond Value

    HOW CARAT WEIGHT IMPACTS PRICE

    Value Of Diamonds

    The price of diamonds fluctuates greatly depending on carat size. Our diamond weight calculator will provide information about your item that will help determine its diamond price and diamond value.

    myGemma will not be able to rely exclusively on the data you provide when we make our final offer, but it will give us an approximation of carat weight which we can use in our estimate calculations.

    Our Diamond Weight Calculator

    Use the diamond carat weight calculator to provide myGemma with information about the carat weight of your diamond. To establish an estimate of the weight of your diamond:

    • 1. Measure the length, width and height of your diamond in mm
    • 2. Enter the measurements in our diamond calculator
    • 3. Find out the carat weight of your diamond

    If you have doubts about the information you currently have or you are missing this information about your diamond. Call our team with any questions you may have.

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    Diamond Weight Calculator

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    New York, New York
    10017, USA