3 Carat Lab-Grown Diamonds
Discover IGI-certified lab-grown diamonds in the 3-carat range, from 3.00 to 3.99 carats. Each listing shows the exact weight, shape, color, clarity and grading report so you can compare stones with confidence.
Carat weight is only part of a diamond’s appearance: shape and measurements also affect how it looks in a setting. Explore a custom engagement ring with CMR Jewelers or browse all lab-grown diamonds.
In-stock stones ship within one business day. Images are representative illustrations, not photographs of the individual stones.
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3.07 ct Oval Lab-Grown Diamond — F VS1 — LG823675644
Regular price $855 USDRegular priceUnit price per -
3.05 ct Round Lab-Grown Diamond — F VS1 — LG823676102
Regular price $790 USDRegular priceUnit price per -
3.01 ct Radiant Lab-Grown Diamond — F VVS2 — LG816640308
Regular price $875 USDRegular priceUnit price per -
3.06 ct Princess Lab-Grown Diamond — F VS1 — LG726566949
Regular price $800 USDRegular priceUnit price per -
3.59 ct Princess Lab-Grown Diamond — F VVS2 — LG809617900
Regular price $1,000 USDRegular priceUnit price per -
3.57 ct Round Lab-Grown Diamond — E VVS2 — LG737546486
Regular price $950 USDRegular priceUnit price per
