Your Country 10 Carat Marquise Natural Diamond Prices

    The current price for a 10 carat marquise natural diamond in United States is $284,267.78, calculated from 3 diamonds that match this carat weight and shape in our database, and has decreased by 1.05% over the last 7 days.

    When comparing to 10 carat natural diamond prices, prices for these diamonds range from $164,271.68 to $469,262.36, depending on factors such as color and clarity.

    10 Carat Marquise Natural Diamond Price Trends

    10ct Marquise Natural Diamond Price Chart in United States (20 August 2026)

    Overall, the trend for 10 carat marquise natural diamond prices over the past three weeks shows a consistent decrease.

    The 7-day change is a moderate decrease of 1.05%, the 14-day change is a sizable decrease of 1.07%, and the 21-day change is a slight decrease of 0.39%.

    These downward trends in diamond prices could suggest weakening demand or increased supply.

    10 Carat Natural Marquise Diamond Prices by Color and Clarity

    Clarity \ ColorEG
    SI1N/A$469,104
    SI2$219,195N/A

    In United States, the highest quality 10 carat marquise natural diamonds with color grade E and clarity SI2 are priced at $219,195.48.

    The lowest quality natural diamonds with color grade G and clarity SI1 are priced at $469,104.35.

    This is a difference of $249,908.87, which means that the highest quality natural diamond is priced 53.27% higher than the lowest quality natural diamonds at the same carat weight.

    It should be noted that there may be some seeming anomalies in the table where lower quality diamonds are priced higher than better quality diamonds. This can happen as our database sources prices from a large number of suppliers and if there are relatively few of a particular combination of shape, color, and clarity available, pricing discrepancies can occur.