0.3 Carat Heart Shaped Lab Grown Diamonds

Shop over 835 0.3 carat heart shaped lab grown diamonds from 9 top-rated online jewelers. Prices typically range from $139 to $976 for 0.3 carat heart shaped lab grown 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