4 Carat Lab-Grown Diamond Ring Price (2026)
By Lavora Diamonds, Provo, Utah. Updated October 2026.
Complete rings have a $2,000 minimum.
The number
A 4 carat lab-grown diamond engagement ring costs roughly $3,150–$3,500 total in E–F colour, VVS2 clarity, 14K gold solitaire — certified stone, setting, custom 3D render and production included.
| Build | Estimated total |
|---|---|
| 4.0ct oval · E–F/VVS2 · 14K · solitaire | $3,150–$3,500 |
| 4.0ct oval · G/VS1 · 14K · hidden halo | $3,225–$3,775 |
| 4.0ct elongated cushion · E–F/VVS2 · 14K · solitaire | $3,150–$3,500 |
| 4.0ct toi et moi · F/VS1 · 14K | $4,325–$4,975 |
A real 4 carat we built
4.02ct oval brilliant, E colour, VVS2 clarity, 14K yellow gold basket solitaire, 2mm band, with a custom interior inscription: $3,349 total. IGI Report LG799653539.
Note what that means — E/VVS2 is a genuinely high spec, and it still came in under $3,400 because the setting was simple. At 4 carats the setting choice matters as much as the grades.
The 4 carat trap
Price does not scale linearly with carat. Going 3ct → 4ct is a larger percentage increase than the carat gain, because larger rough is disproportionately scarcer even in lab-grown. So the marginal dollar at this size buys less size than it did at 2ct.
The practical consequence: at 4 carats, drop colour and clarity before you drop carat. A 4.0ct in G/VS1 looks bigger and costs less than a 3.5ct in D/VVS1, and nobody at the wedding is holding a loupe.
Will 4 carats look too big?
Depends far more on shape than carat. A 4ct round is compact and deep. A 4ct oval, marquise or elongated cushion spreads across the finger and reads much larger. Ask for the millimetre measurements on the IGI report — that is what you actually see, not the carat number.
FAQ
How much is a 4 carat lab-grown diamond ring?
Roughly $3,150–$3,500 total for E–F/VVS2 in a 14K gold solitaire. A completed 4.02ct oval in E/VVS2 came to $3,349 (IGI LG799653539). Complete rings have a $2,000 minimum.
What clarity do I need at 4 carats?
VS1 or better, the standard on every Lavora center. Brilliant cuts (oval, round, cushion, radiant, pear, marquise) scatter light and hide inclusions; step cuts like emerald have open facets that show everything, so hold VS1 or better there too.
How much is a 4 carat oval lab-grown engagement ring?
A 4.0ct oval in E–F/VVS2 in a 14K gold solitaire is estimated at $3,150–$3,500 complete, and a 4.0ct G/VS1 oval with a hidden halo at $3,225–$3,775. A completed 4.02ct E/VVS2 oval came to $3,349 complete.
How much is a 4 carat elongated cushion lab-grown engagement ring?
A 4.0ct elongated cushion in E–F/VVS2 in a 14K gold solitaire is estimated at $3,150–$3,500 complete.
How much is a 4 carat lab-grown ring in platinum or as an emerald cut?
Platinum and 4ct emerald cuts are quoted on your specs. For scale, the 14K E–F/VVS2 solitaire estimate is $3,150–$3,500, and a step cut like emerald should hold VS1 or better.
Have a 4 carat quote? Send it here or text (385) 592-7180. Send your written quote for a private same-spec comparison on Price My Ring, or text 385-592-7180.
See also: completed builds with IGI numbers · 3 carat oval pricing · full estimator · 3.5 carat ring cost · text 385-592-7180
Thinking bigger than 4 carats?
Why the money goes further: Lavora has no retail store overhead to pay for, so your budget goes into the ring itself. Couples often put that budget into a bigger diamond or a matching band, and a Lavora ring is often well under retail for the same IGI-certified specs.
A 5.0ct E–F/VVS2 14K solitaire is estimated at $4,475–$4,950 complete, and D–F color, VVS centers up to 10ct are available. See 5 carat lab diamond engagement ring cost and what $8K, $10K and $15K buys.
See your 3D model in 24–48 hours
Text us a photo or idea and your budget. We reply with a soft quote and next steps. Production begins after 3D approval and payment.
Text (385) 592-7180 Get my ring quote