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3 Carat Cushion Lab-Grown Engagement Rings

Celebrate sustainable elegance with 3 Carat Cushion Lab Grown Engagement Rings, blending the romantic softness of the cushion cut with the affordability and ethics of lab-grown diamonds.

Perfect for couples who want both beauty and responsibility in their 3 carat engagement ring.

Browse our collection below to discover your ideal 3 carat cushion lab grown engagement ring.

90 items
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  • Sidestone
  • Solitaire
  • Halo
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  • Three Stone
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  • Round
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  • Cushion
  • Oval
  • Emerald
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  • Marquise
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  • 14KW
  • 14KY
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  • 18KW
  • 18KY
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  • PLAT
90 products found.
Show Results
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Four-Prong Basket Classic Three Stone Engagement Ring
2.94 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,219.00 $2,897.10
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Four-Prong Bezel Classic Halo Engagement Ring
3.64 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,919.00 $3,527.10
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Four-Prong Basket Trellis Three Stone Engagement Ring
3.78 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,249.00 $3,824.10
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Four-Prong Suspended Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,959.00 $3,563.10
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Crown Pavé Bezel Solitaire Engagement Ring
3.56 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,739.00 $4,265.10
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Four-Prong Pavé Tulip Sidestone Engagement Ring
3.52 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,109.00 $3,698.10
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Four-Prong Trellis Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,859.00 $3,473.10
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Eight-Prong Modern Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,949.00 $3,554.10
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Semi-Bezel Suspended Halo Engagement Ring
3.18 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,729.00 $3,356.10
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Four-Prong Bezel Halo Three Stone Engagement Ring
3.16 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,949.00 $3,554.10
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Bezel Modern Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,529.00 $4,076.10
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Hidden Halo Modern Hidden Halo Engagement Ring
3.38 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,039.00 $3,635.10
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Four-Prong Basket Trellis Three Stone Engagement Ring
3.06 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,429.00 $3,086.10
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Semi-Bezel Twisted Sidestone Engagement Ring
3.62 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,129.00 $3,716.10
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Four-Prong Bezel Geometric Halo Engagement Ring
3.84 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,559.00 $4,103.10
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Four-Prong Floral Halo Engagement Ring
3.74 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,389.00 $3,950.10
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Four-Prong Basket Classic Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,939.00 $3,545.10
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Four-Prong Floral Halo Engagement Ring
3.86 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,779.00 $3,401.10
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Four-Prong Pavé Modern Hidden Halo Engagement Ring
2.95 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,069.00 $2,762.10
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Four-Prong Basket Classic Solitaire Engagement Ring
3.43 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,919.00 $3,527.10
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Four-Prong Basket Modern Hidden Halo Engagement Ring
2.95 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,149.00 $2,834.10
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Four-Prong Basket Trellis Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,989.00 $3,590.10
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Four-Prong Basket Trellis Three Stone Engagement Ring
3.67 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,449.00 $3,104.10
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Four-Prong Basket Classic Three Stone Engagement Ring
3.68 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,709.00 $3,338.10
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Four-Prong Basket Trellis Three Stone Engagement Ring
3.60 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,679.00 $3,311.10
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Four-Prong Floral Halo Engagement Ring
2.97 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,329.00 $2,996.10
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Six-Prong Bezel Classic Halo Engagement Ring
3.66 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,269.00 $3,842.10
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Four-Prong Bezel Classic Halo Engagement Ring
3.50 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,299.00 $3,869.10
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Four-Prong Bezel Suspended Halo Engagement Ring
3.52 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,199.00 $3,779.10
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Four-Prong Floral Halo Engagement Ring
3.63 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,229.00 $3,806.10
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Split-Prong Modern Halo Engagement Ring
3.79 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,509.00 $4,058.10
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Four-Prong Sculptural Halo Engagement Ring
3.43 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,129.00 $3,716.10
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Four-Prong Basket Degrade Sidestone Engagement Ring
3.16 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,299.00 $2,969.10
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Four-Prong Basket Cathedral Sidestone Engagement Ring
3.35 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,959.00 $3,563.10
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Bezel Crown Pavé Modern Hidden Halo Engagement Ring
3.49 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,259.00 $3,833.10
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Bar-Prong Tension Sidestone Engagement Ring
3.47 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,859.00 $4,373.10
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Floral Six-Prong Milgrain Vintage Engagement Ring
3.64 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,379.00 $3,941.10
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Bar-Prong Suspended Three Stone Engagement Ring
3.60 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,249.00 $3,824.10
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Four-Prong Basket Cathedral Sidestone Engagement Ring
3.56 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,159.00 $3,743.10
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Crown Pavé Bezel East West Sidestone Engagement Ring
3.63 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,249.00 $3,824.10
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Suspended Engraved Sidestone Engagement Ring
3.48 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,989.00 $3,590.10
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Four-Prong Basket Bypass Three Stone Engagement Ring
3.90 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,449.00 $4,004.10
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Four-Prong Twisted Solitaire Engagement Ring
3.34 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,919.00 $3,527.10
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Four-Prong Basket Modern Sidestone Engagement Ring
3.52 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,239.00 $3,815.10
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Four-Prong Basket Sculptural Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,939.00 $3,545.10
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Four-Prong Basket Trellis Three Stone Anniversary Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$2,969.00 $2,672.10
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Four-Prong Cathedral Geometric Halo Engagement Ring
3.02 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,169.00 $2,852.10
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Four-Prong Modern Solitaire Engagement Ring
3.34 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,109.00 $3,698.10
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Four-Prong Twisted Sidestone Engagement Ring
3.34 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,309.00 $3,878.10
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Four-Prong Suspended Halo Engagement Ring
3.80 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,029.00 $3,626.10
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Four-Prong Sculptural Halo Engagement Ring
3.78 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,399.00 $3,959.10
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Four-Prong Basket Cathedral Sidestone Engagement Ring
3.62 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,129.00 $3,716.10
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Four-Prong Pavé Classic Hidden Halo Engagement Ring
3.78 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,979.00 $3,581.10
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Four-Prong Engraved Vintage Engagement Ring
3.52 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,499.00 $4,049.10
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Four-Prong Vintage Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,049.00 $3,644.10
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Four-Prong Infinity Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,999.00 $3,599.10
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Four-Prong Vintage Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,969.00 $3,572.10
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Four-Prong Basket Twisted Sidestone Engagement Ring
3.12 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,469.00 $3,122.10
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U-Prong Suspended Three Stone Anniversary Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,069.00 $2,762.10
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Four-Prong Classic Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,919.00 $3,527.10
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Four-Prong Basket Sculptural Three Stone Anniversary Ring
3.60 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,109.00 $2,798.10
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Crown Cathedral Halo Three Stone Engagement Ring
3.67 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,199.00 $2,879.10
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Four-Prong Floral Classic Sidestone Engagement Ring
3.52 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,959.00 $3,563.10
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Four-Prong Basket Engraved Three Stone Engagement Ring
3.33 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,459.00 $4,013.10
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Claw-Prong Classic Hidden Halo Engagement Ring
3.70 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,949.00 $3,554.10
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Claw-Prong Modern Halo Engagement Ring
3.84 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,089.00 $3,680.10
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Bezel Halo Three Stone Anniversary Ring
3.61 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,319.00 $2,987.10
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Four-Prong Basket Engraved Three Stone Engagement Ring
3.34 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$2,879.00 $2,591.10
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Four-Prong Basket Engraved Three Stone Engagement Ring
3.35 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,049.00 $2,744.10
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V-Prong Suspended Three Stone Anniversary Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,119.00 $2,807.10
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Four-Prong Vintage Halo Engagement Ring
3.51 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,139.00 $3,725.10
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Four-Prong Floral Halo Engagement Ring
3.65 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,139.00 $3,725.10
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Cushion Sculptural Anniversary Ring
3.13 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$2,619.00 $2,357.10
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Four-Prong Milgrain Vintage Engagement Ring
3.03 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,589.00 $3,230.10
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Four-Prong Cathedral Classic Sidestone Engagement Ring
3.72 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,249.00 $3,824.10
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Claw-Prong Trellis Three Stone Engagement Ring
3.48 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,069.00 $2,762.10
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Bezel Sculptural Three Stone Anniversary Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,029.00 $2,726.10
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Four-Prong Classic Hidden Halo Engagement Ring
3.38 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,049.00 $3,644.10
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Four-Prong Modern Sidestone Engagement Ring
3.81 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,289.00 $3,860.10
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Four-Prong Art Deco Halo Engagement Ring
2.96 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$2,729.00 $2,456.10
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Four-Prong Basket Sculptural Three Stone Engagement Ring
3.62 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,299.00 $3,869.10
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Four-Prong Tulip Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,929.00 $3,536.10
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Four-Prong Basket Classic Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,999.00 $3,599.10
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Four-Prong Infinity Halo Engagement Ring
3.74 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,309.00 $3,878.10
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Four-Prong Bypass Halo Engagement Ring
3.65 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$4,219.00 $3,797.10
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Claw-Prong Halo Three Stone Engagement Ring
3.40 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,489.00 $3,140.10
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Four-Prong Basket Classic Three Stone Engagement Ring
3.56 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,709.00 $3,338.10
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Four-Prong Basket Cathedral Three Stone Engagement Ring
3.26 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,259.00 $2,933.10
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Four-Prong Cathedral Vintage Solitaire Engagement Ring
3.30 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,909.00 $3,518.10
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Four-Prong Halo Three Stone Engagement Ring
3.62 Tcw Cushion Lab-Grown GH/VS2+, 14KW
$3,639.00 $3,275.10

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