3 Carat Lab Grown Diamond Engagement Rings
At 3 carats, the stone does the talking. Every ring here is graded by 100+ GIA gemologists — because at this size, the details matter more than ever.
/2_54_RC5012ENR-14KY_1_32506220050.jpeg)
580+ ring designs
/2_59_ENO22040SMW_1_12607260813.jpeg)
Linda Comfort-Fit (1.5mm) With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,585
Comp. value: $3,750
/2_55_RC2371_14KW-LAB_1_12509301757.jpeg)
Hidden Halo
Bellora Pavé Hidden Halo Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,370
Comp. value: $4,870
/2_56_RC11415-4WE_1_12606022122.jpeg)
Best Seller
Vivian Solitaire With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,915
Comp. value: $4,220
/2_59_ENCT5086SMW-LAB_1_12603310144.jpeg)
Color+
Hayden Curved Vine Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,055
Comp. value: $4,420
/2_56_SDC10002-4WE-LAB_1_22601131710.jpeg)
Best Seller
Marigold Tulip Inspired 6 Prong Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,670
Comp. value: $3,870
/2_56_SDC10054-4WE-LAB_1_12605160022.jpeg)
Hidden Halo
Marie Classic Hidden Halo Lab Pavé With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,770
Comp. value: $4,010
/2_170_SM0357-14K-W_1_52506280157.jpeg)
Best Seller
Kennedy Pave With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,355
Comp. value: $4,850
/2_59_ENO29988SMW_1_12605152159.jpeg)
Vionne Vine With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,075
Comp. value: $4,450
/2_53_31-RC11117-4WE-LAB_1_12601131615.jpeg)
Hidden Halo
Kayleigh Lab Twist With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,805
Comp. value: $4,060
/2_55_17737_14KW_LAB_1_12606181831.jpeg)
Bellora Pavé Twist Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,025
Comp. value: $4,380
/2_56_SDC10058-4WE_1_12508262152.jpeg)
Sue Timeless Halo With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 4,090
Comp. value: $5,900
/2_53_31-RC12164-4WE-LAB_1_12605162341.jpeg)
Hidden Halo
Betty Marquise Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,760
Comp. value: $4,000
/2_56_SDC10081-4WE_1_12508262205.jpeg)
Hidden Halo
Beverly Timeless Hidden Halo With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,980
Comp. value: $4,310
/2_56_RC11542-4WE_1_12607301552.jpeg)
Bianca Twist With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,865
Comp. value: $4,150
/2_54_RC5002ENR-14KW-LAB_1_12605111812.jpeg)
Color+
Butterfly And Bee Vine Twist Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,785
Comp. value: $5,460
/2_182_85380-4W2_1_12512160622.jpeg)
Hidden Halo
Lisa Hidden Halo With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,340
Comp. value: $4,830
/2_55_RC9847Y_14KW_1_12508121826.jpeg)
Bellora Solitaire With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,050
Comp. value: $4,410
/2_59_ENHT9735SMW-LAB_1_12603310726.jpeg)
Hayley Scattered Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,675
Comp. value: $3,880
/2_56_RC11457-4WE_1_12606091642.jpeg)
Windy Solitaire With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,760
Comp. value: $4,000
/2_57_LRBC556OFW050_1_12607292022.png)
Madison Three-Stone Lab Pear With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,375
Comp. value: $4,880
/2_59_ENO23291SMW_1_12607260813.jpeg)
Boda Six-Prong Comfort-Fit (1.5mm) With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,585
Comp. value: $3,750
/2_170_SL0353-14K-W_1_52506232112.jpeg)
Best Seller
Bella Solitaire With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,885
Comp. value: $4,180
/2_59_UM2H8016SMW-LAB_1_12603310153.jpeg)
Jules Classic Lab (1/2ct. tw.) With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,930
Comp. value: $4,240
/2_54_RC9982ENR-14KW_1_12604301857.jpeg)
Marni Petite Three-Stone With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,910
Comp. value: $4,210
/2_182_50781-E-4W2-LAB_1_12603200433.jpeg)
Carmel Vintage Inspired Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,095
Comp. value: $4,480
/2_56_SDC10062-4WE_1_12508262244.jpeg)
Cici Halo With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,690
Comp. value: $5,330
/2_182_84277-4W2-LAB_1_12606062307.jpeg)
Best Seller
Rosella Three Stone Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,090
Comp. value: $4,470
/2_57_LRBC396YFW025_1_12603052037.png)
Signature Hearts & Arrows Classic Hidden Halo Pavé Lab (1/4ct. tw.) With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,180
Comp. value: $4,600
/2_182_84842-4W2_1_12512151513.jpeg)
Best Seller
Riley Classic Pavé With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,475
Comp. value: $5,020
/2_182_85290-4W2-LAB_1_12607210057.jpeg)
Best Seller
Freya Lab Twist With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,095
Comp. value: $4,480
/2_57_LRBC393YFW025_1_12603240038.png)
Signature Hearts & Arrows Pavé Lab (1/4ct. tw.) With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,075
Comp. value: $4,450
/2_56_SDC10055-4WE_1_12508262126.jpeg)
Ally Classic Solitaire (1.4mm) With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,705
Comp. value: $3,920
/2_59_ENO24522SMW_1_12606081518.jpeg)
Linda Comfort-Fit (2mm) With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,880
Comp. value: $4,170
/2_56_SDC10035-4WE_1_12508262049.jpeg)
Estelle Classic Pavé Cathedral Halo With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,480
Comp. value: $5,030
/2_182_51169-E-4W2_1_12606050254.jpeg)
Vine Nature Inspired With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,075
Comp. value: $4,450
/2_182_84757-4W6_1_12512151723.jpeg)
Best Seller
Mila Vintage-Inspired Solitaire With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,200
Comp. value: $4,630
/2_56_SDC10082-4WE_1_12508272201.jpeg)
Hidden Halo
Rita Graduated Pavé With Hidden Halo With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,350
Comp. value: $4,840
/2_57_LRBC315YFW040_1_12512101717.png)
Signature Hearts & Arrows Pavé Spiral Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,855
Comp. value: $5,560
/2_170_HL0201-14K-W_1_12506280157.jpeg)
Hidden Halo
Winter Halo With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,650
Comp. value: $5,270
/2_57_RBC489FW-PL_1_12602200645.png)
Widths+
Tradition Cathedral Solitaire (1.8mm) With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 2,790
Comp. value: $4,040
/2_59_CENCT3738SMW_1_12603312358.jpeg)
Color+
Hayden Curved Vine Tsavorite And With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,110
Comp. value: $4,500
/2_56_SDC10033-4WE_1_12508262051.jpeg)
Clarissa Split Shank Halo With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,375
Comp. value: $4,880
/2_57_LRBCX196OFW220_1_12511080419.png)
Tradition Lab Pavé (1/5ct tw.) With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,180
Comp. value: $4,600
/2_55_RC9847HH_14KW-LAB_1_12509300051.jpeg)
Hidden Halo
Bellora Hidden Halo Lab With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,210
Comp. value: $4,640
/2_56_SDC10057-4WE_1_12508271506.jpeg)
Hidden Halo
Britta Pavé Hidden Circlet And Band With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,460
Comp. value: $5,000
/2_59_EN3W7189SMW-LAB_1_12603310257.jpeg)
Virelia Lab by Christian Siriano With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,090
Comp. value: $4,470
/2_56_SDC10079-4WE_1_12508262214.jpeg)
Donna Timeless Pavé With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,270
Comp. value: $4,730
/2_59_EN1W9346SMW_1_12603310726.jpeg)
Lea Nature-Inspired With 3.04 Carat Round Engagement Ring With 3 Carat Round Diamond
$ 3,125
Comp. value: $4,520
Compare 100s of designs
Browse our full catalogue of settings designs to choose the one fits your type
Have a design of your own?
Explore more diamond ring options
Get $100 off
Stay up to date with exclusive deals, price alerts, gemologist tips, and more!
Minimum purchase required.
By signing up you agree to our Terms.