3 Carat Engagement Rings
Lab-Grown Diamonds · Made to Order · IGI Certified
Three carats is a statement weight — real presence on the hand, and the size where lab-grown changes the math most: a mined three-carat of this grade is a rare five-figure-plus stone, while a Sula three-carat stays attainable at D–F color, VVS clarity, IGI certified. At this size cut and proportion carry the ring, so every center is GIA Excellent cut. Each design below is made to order and can be built at three carats, set in solid 18K gold or platinum.
Shape
Style
Metal
Carat Size
Price Range
Showing 24 of 83 rings
Round Solitaire Lab-Grown Engagement Ring — 18K Gold
From $2,300
Oval Solitaire Lab-Grown Engagement Ring — 18K Gold
From $2,650
Emerald Solitaire Lab-Grown Engagement Ring — 18K Gold
From $2,100
Radiant Pavé Lab-Grown Engagement Ring — 18K Gold
From $2,950
Round Halo Pavé Lab-Grown Engagement Ring — 18K Gold
From $2,950
Round Hidden Halo Lab-Grown Engagement Ring — 18K Gold
From $2,950
Oval Under-Halo Lab-Grown Engagement Ring — 18K Gold
From $2,950
Pear Pavé Lab-Grown Engagement Ring — 18K Gold
From $2,950
Emerald Bezel Lab-Grown Engagement Ring — 18K Gold
From $2,300
Pear Vine Twist Lab-Grown Engagement Ring — 18K Rose Gold
From $3,250
Emerald Pavé Lab-Grown Engagement Ring — 18K White Gold
From $2,100
Radiant Solitaire Engagement Ring — 18K Yellow Gold
From $2,300
Pear Hidden Halo Lab-Grown Engagement Ring — 18K Yellow Gold
From $2,650
Pear Solitaire Lab-Grown Engagement Ring — 18K Yellow Gold
From $2,300
Radiant Pavé Lab-Grown Engagement Ring — Platinum
From $2,950
Round Solitaire Lab-Grown Engagement Ring — Platinum
From $2,300
Round Solitaire Lab-Grown Engagement Ring — 18K Yellow Gold
From $2,300
Round Halo Lab-Grown Engagement Ring — Platinum
From $2,950
Emerald Three-Stone Engagement Ring — 18K Yellow Gold
From $3,900
Emerald Bezel Lab-Grown Engagement Ring — 18K Yellow Gold
From $2,100
Oval Pavé Lab-Grown Engagement Ring — Platinum
From $2,950
Oval Bezel Lab-Grown Engagement Ring — 18K Yellow Gold
From $2,300
Oval Solitaire Lab-Grown Engagement Ring — Platinum
From $2,300
Pear Three-Stone Lab-Grown Engagement Ring — 18K Gold
From $4,950
59 more to explore
Why Trust Sula Bridal
Every diamond is inspected, measured, and certified before it reaches you. We stand behind every ring with transparent policies and dedicated support.
HD Macro Video
Every diamond includes a high-definition macro video so you can inspect brilliance, fire, and clarity before you buy.
MM Measurements
Precise millimeter measurements provided for every stone, ensuring your diamond matches the setting perfectly.
IGI Certified
All diamonds certified by IGI. GIA certification available upon request for additional peace of mind.
Setting Consistency
Every setting is quality-checked for consistency across all ring sizes — the same precision at size 4 as at size 10.
Full Customization
Choose your metal (platinum, or 14K or 18K white, yellow, or rose gold), ring size, engraving, and diamond specifications.
Free Insured Shipping
Worldwide insured shipping via FedEx or DHL. Signature required. Full tracking provided within 24 hours.
After-Sales Care
One complimentary resizing within 6 months. Lifetime cleaning and inspection. Maintenance guidance included.