3 carat round lab-grown engagement ring price

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

How much is a 3 carat round lab-grown engagement ring?

Short answer: at Lavora Diamonds, a 3 carat round lab-grown solitaire (E–F color, VVS2 clarity) in 14K yellow gold is estimated at $2,625–$2,925 complete on our ring price estimator. That covers the IGI-certified center, the setting and your custom 3D render.

A 3.5ct E–F/VVS2 round hidden halo in 14K yellow gold is $3,200–$3,525, and a 2.0ct E–F/VVS2 round solitaire is $2,175–$2,425. Our design-desk rates are per carat, not per shape, so a round prices like any other shape of the same size and grade on the desk; the exact stone you choose sets the final number. A hidden halo, pavé band, 18K gold or platinum move the number up, and your exact price comes with your 3D render. Complete engagement rings have a $2,000 minimum.

Lavora 3 carat round price guide

Build	Price	Source
3.0ct round · E–F/VVS2 · 14K yellow · solitaire	$2,625–$2,925	Ring price estimator
3.5ct round · E–F/VVS2 · 14K yellow · hidden halo	$3,200–$3,525	Ring price estimator
2.5ct round · E–F/VVS2 · 14K yellow · pavé band	$3,300–$3,650	Ring price estimator
2.0ct round · E–F/VVS2 · 14K yellow · solitaire	$2,175–$2,425	Ring price estimator
3.0ct pear or radiant · F/VS1 · 14K yellow · solitaire	$2,175–$2,550	Ring price estimator (F/VS1 grade, for comparison)
Hidden halo, pavé band, 18K gold or platinum	Raises the price	Quoted on your specs

Estimator and design-desk figures are ranges, not fixed prices; completed builds are past Lavora rings. See our ring price estimator and completed ring prices. Your exact price comes with your 3D render.

How big is a 3 carat round?

A round brilliant is a symmetrical cut, so it faces up the same size in every direction. Measurements below come from IGI-graded lab-grown stones in our supplier feed, October 2026.

Center	Face-up size
3ct round	about 9.2–9.4 mm across
2ct round	about 8.0–8.2 mm across
1.5ct round	about 7.3–7.5 mm across

Going from 2 to 3 carats adds about one millimeter of width to a round. Compare millimeters, not just carats, and check the spread on your 3D render.

Buying tips

• Clarity: VS1+. Round faceting hides small inclusions well, and VS1 is our floor.
• Cut grade: IGI reports give round brilliants an overall cut grade. Ask for the cut grade along with color and clarity.
• Grades vs size: on our ring price estimator, F/VS1 rows sit below E–F/VVS2 rows of the same size. Decide whether you want to spend on carat or on grades.
• Other sizes: see 3 carat ring prices, 2 carat ring prices and 2 carat round ring prices.

How a custom ring works at Lavora

1. Text us a photo or idea. We text back a private soft quote, usually in about 12 hours.
2. You see a 3D render first, often within 24–48 hours: $50 refundable, credited to your ring, with unlimited revisions.
3. Delivery takes 4–5 weeks after 3D approval and payment, and a $250 rush takes 2–3 weeks (14–21 days).
4. Production begins after 3D approval and payment. Klarna and Affirm financing are available on your invoice.

Every lab-grown center is IGI-certified, VS1+ clarity. Engraving is complimentary, US shipping is free and fully insured, and every ring comes with a Lifetime craftsmanship warranty, plus free resizing within the first 60 days. The warranty covers manufacturing defects. With no retail store overhead, our prices sit well under retail. Save 10 percent off your total when you buy the ring and band together.

3 carat round questions

How much is a 3 carat round lab-grown engagement ring?

At Lavora Diamonds, a 3 carat round lab-grown solitaire (E–F color, VVS2 clarity) in 14K yellow gold is estimated at $2,625–$2,925 complete on our ring price estimator, including the IGI-certified center, setting and your custom 3D render. Your exact price comes with your 3D render.

How much is a 3 carat round with a hidden halo?

On our ring price estimator, a 3.5ct E–F/VVS2 round hidden halo in 14K yellow gold is $3,200–$3,525. A hidden halo at 3 carats is quoted on your specs, and we show it in your 3D render.

Is a 3 carat round cheaper in F/VS1?

Usually. On our ring price estimator, 3.0ct F/VS1 pear and radiant solitaires in 14K yellow gold are $2,175–$2,550, below the 3.0ct E–F/VVS2 round row. Our design-desk rates are per carat, not per shape, so a round prices like any other shape of the same size and grade on the desk; the exact stone you choose sets the final number.

How big is a 3 carat round diamond?

Based on IGI-graded 3 carat lab-grown rounds in our supplier feed in October 2026, a 3 carat round measures about 9.2–9.4 mm across, compared with about 8.0–8.2 mm for a 2 carat round.

Can I get a 3 carat round in platinum?

Yes. Platinum and 18K gold are offered and are quoted on your specs; both cost more than the 14K gold in our estimates. We show the metal in your 3D render before production.

How do I pay for a custom 3 carat round ring?

Production begins after 3D approval and payment. Klarna and Affirm financing are available on your invoice. Complete engagement rings have a $2,000 minimum.

See also: 3 carat ring prices · 3 carat oval prices · 2 carat ring prices · 2 carat round prices · ring price estimator

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