Shop 0.3 Carat Lab Grown Diamonds

Search over 298,485 0.3 carat diamonds from 9 top-rated online jewelers. Prices typically range from $146 to $659 for 0.3 carat lab grown diamonds and $354 to $975 for 0.3 carat natural diamonds depending on the diamond's shape, color, clarity, and other factors. For more diamond pricing information check out our Diamond Price Indexes.

Shop 0.3 Carat Lab Grown Diamonds

These diamonds are recommended to you based on our internal recommendation engine.

Prices have decreased by 2.76% in the last month.