0.3 Carat Marquise Lab Grown Diamonds

Shop over 3,399 0.3 carat marquise lab grown diamonds from 9 top-rated online jewelers. Prices typically range from $34 to $1,357 for 0.3 carat marquise lab grown diamonds depending on the diamond's color, clarity, and other factors. For more diamond pricing information check out our Diamond Price Indexes.

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