0.3 Carat Round Diamonds

Shop over 153,553 0.3 carat round diamonds from 9 top-rated online jewelers. Prices currently range from $298 to $914 for 0.3 carat round diamonds depending on the diamond's color, clarity, and other factors. For more diamond pricing information check out our Diamond Price Indexes.

Top Diamonds

These diamonds are recommended to you based on your search activity.

All Diamonds