3 Carat Oval Lab-Grown Diamond Ring Price (2026)

By Lavora Diamonds, Provo, Utah. Updated October 19, 2026.

How much does a 3 carat lab-grown oval engagement ring cost?

Short answer: a 3 carat lab-grown oval engagement ring at Lavora Diamonds is estimated at about $2,775 complete ($2,625–$2,925) in a 14K gold solitaire with an E–F/VVS2 IGI-certified center.

The estimate includes the IGI-certified center, custom 3D design and production; complete rings have a $2,000 minimum. The hidden-halo estimate and completed builds are in the table below.

Real 3 carat oval prices

Build	Price	Source
3ct oval · 14K · solitaire	about $2,775 ($2,625–$2,925)	Design-desk estimate
3ct oval · 14K · hidden halo	about $2,950 ($2,800–$3,100)	Design-desk estimate
3.50ct oval · 14K yellow · hidden halo, low-set basket	$2,799 complete	Completed build
3.16ct D / IF oval · 14K white · hidden halo · IGI LG768619254	$3,249 complete	Completed build
2.50ct E VS1 oval · 14K	$2,243 complete	Completed build
4.02ct E / VVS2 oval · 14K yellow · hidden birthstones	$3,349 complete	Completed build

Completed prices are past Lavora builds (completed ring prices · price per carat index); design-desk estimates are ranges, not fixed prices. Your exact price comes with your 3D model.

What does a 2.5 carat oval cost?

A completed 2.50ct E VS1 lab-grown oval in 14K gold came to $2,243 complete. Complete engagement rings have a $2,000 minimum, so it is worth pricing a 2.5ct and a 3ct oval side by side before deciding.

A real one we built

A 3.16ct oval, D color, Internally Flawless, 14K white gold with a hidden halo and four double-round prongs: $3,249 total. IGI Report LG768619254, issued February 6, 2026. Measurements 11.98 × 8.38 × 5.17 mm, a 1.43 length-to-width ratio.

Why you probably should not buy D/IF at 3 carats

We also built a 4.02ct oval in E/VVS2 for $3,349 (IGI LG799653539). That is nearly a full carat more diamond for $100 more, because color dropped one grade and clarity dropped from Internally Flawless. Neither difference is visible without magnification. At 3 carats, the money is better spent on cut quality and length-to-width ratio.

What changes the price of a 3ct oval?

Ratio. A 1.40–1.50 length-to-width oval looks noticeably longer than a 1.30.

Bow-tie. Every oval has a darker band across the middle; a good cut nearly eliminates it. It is not on the certificate, so ask for video of the actual stone.

Setting. On our 3ct design-desk estimates, a hidden halo adds about $175 over a solitaire. Pavé, three-stone, 18K and platinum are quoted on your specs.

Color and clarity. Real but the smallest visual impact. Our standard is VS1 clarity or better; D–F color and VVS are upgrades.

How do I check a 3ct oval quote?

Get the IGI report number, verify it at igi.org, and ask for the stone price and setting price as two separate figures. Then compare those exact certified specs with at least one other seller.

Every lab-grown center is IGI-certified, and our standard is VS1 clarity or better (D–F color and VVS clarity are available as upgrades). You see a 3D render first, often within 24–48 hours, for a $50 design fee that is fully refundable and credited to your ring, with unlimited revisions. Delivery takes 4–5 weeks after 3D approval and payment, and a $250 rush takes 2–3 weeks (14–21 days). Engraving is complimentary, US shipping is free and fully insured, and every ring comes with a Lifetime craftsmanship warranty, plus a free resize within 60 days.

Going bigger? See where to buy a big lab-grown diamond ring · 5 carat ring cost · 6–10 carat ring cost · what a $20K–$30K budget buys

FAQ

How much does a 3 carat lab-grown oval engagement ring cost?

At Lavora Diamonds, a 3ct lab-grown oval in a 14K solitaire is estimated at about $2,775 ($2,625–$2,925) complete and with a hidden halo at about $2,950 ($2,800–$3,100). A completed 3.50ct oval with a hidden halo came to $2,799, and a completed 3.16ct D/IF oval with a hidden halo to $3,249.

How much is a 2.5 carat lab-grown oval engagement ring?

A completed Lavora 2.50ct E VS1 oval in 14K gold came to $2,243 complete, with an IGI-certified center. Complete engagement rings have a $2,000 minimum.

Should I pay for D color and Internally Flawless in a 3ct oval?

Usually not. Our completed 4.02ct E/VVS2 oval cost $3,349, only $100 more than our 3.16ct D/IF oval at $3,249. Spend on cut, length-to-width ratio and setting first; our standard is VS1 or better.

Is a 3 carat oval too big?

Ovals wear larger than their carat weight because the shape elongates on the finger. Check the millimeter measurements on the IGI report, not just the carat number.

See also: all completed builds with IGI numbers · 3 carat ring prices, all shapes · hidden halo prices

Lavora Diamonds · 412 West Rivers Edge Drive, Provo UT 84604 · text 385-592-7180